STRANGER THINGS Finale Started Filming Without A Finished Script: "We Don't Even Fully Know What's Going On"

STRANGER THINGS Finale Started Filming Without A Finished Script: "We Don't Even Fully Know What's Going On"

Stranger Things 5 has divided opinions, and in the newly released One Last Adventure making-of documentary, it's revealed that the final episode started shooting without a finished script.

By JoshWilding - Jan 12, 2026 06:01 PM EST
Filed Under: Stranger Things
Source: SFFGazette.com

One Last Adventure: The Making of Stranger Things 5 premiered on Netflix earlier today. The documentary follows filmmaker Martina Radwan as she takes a deep dive behind the scenes of the hit show's send-off.

The feature-length final episode has split opinions, with many fans expressing disappointment about how the story ended. In news likely to only heighten frustrations with the finale, the documentary confirms (via SFFGazette.com) that "The Rightside Up" began shooting without a finished script.

Creators and showrunners Matt and Ross Duffer are featured discussing how production started on both the season and the series finale without the ending being put on paper.

"It's not like we don't know what the ending is. It's all plotted out," Matt says. "I have to write it, and we're just low on time." Later, we jump to around the halfway point of filming, where it's confirmed that episode 8's script still wasn't done. 

Set production assistant Montana Maniscalco tells the camera at one point, "We are shooting episode 8, which isn't completely written yet — spoiler alert! So we don't even fully know what's going on."

Matt later acknowledges that he's unhappy with how things are going. "I've never read 8 through, and we're just shooting it. I've never done anything like this before. This is so weird jumping to eight. Don't love it. Don't love it."

In a sit-down interview, he elaborated, "We were getting hammered constantly by production and by Netflix for episode 8. It was the most difficult writing circumstances we've ever found ourselves in, not just because there was the pressure of we had to make sure the script was good, but there's never been so much noise at the same time."

This will surely bring the "Conformity Gate" theories to an end, as the Duffer Brothers barely had time to write the finale we got, never mind a secret extra episode meant to reveal what "really" happened.  

It's common for Marvel Studios movies to shoot without finished scripts—Avengers: Doomsday reportedly didn't have an ending when cameras started rolling—but this clearly isn't a process the Duffer Brothers were familiar or overly comfortable with.

Does this explain the issues fans had with the Stranger Things finale? It may go some way in addressing the show's problems in its final year, and it's strange that Netflix was happy to publicly reveal these production issues in an officially released documentary.

For a better idea of what to expect from One Last Adventure: The Making of Stranger Things 5, check out the trailer below.

About The Author:
JoshWilding
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TheLobster
TheLobster - 1/12/2026, 6:26 PM
LOL

I’ll never understand how expensive series/movies will go into production without a completed script. Sometimes it works but most times it does not..
Urubrodi
Urubrodi - 1/12/2026, 6:46 PM
@TheLobster - I feel like the only times it might work is when you are doing an adaptation or have some source material to steal ideas from, like Marvel. Cause if certain story beats are not fully refined yet at least you already have a lot of ideas of established material to pull from.

But when you are working on an original IP like Stranger Things, going yolo is rarely gonna work out well.
Mongrol
Mongrol - 1/12/2026, 8:00 PM
@Urubrodi -

TV has always worked like this.

Deklipz
Deklipz - 1/12/2026, 6:27 PM
They literally had no clue wtf they were doing from season to season and it shows, so not having more than an outline for the finale seems right in line with the way they do things. They may have known what they wanted the final scene to be at the beginning, but there’s no way they had a cohesive plan and came out with a series that feels more disjointed then an arm broken in 15 places.
Wahhvacado
Wahhvacado - 1/12/2026, 6:30 PM

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Nonameforme
Nonameforme - 1/12/2026, 7:56 PM
@Wahhvacado - if you haven't seen the show that mild shock gif is from, you should
Wahhvacado
Wahhvacado - 1/13/2026, 9:57 AM
@Nonameforme - I haven't but I will definitely check it out! Thanks for the recommendation
ModHaterSLADE
ModHaterSLADE - 1/12/2026, 6:41 PM
Wasn't blown by the finale, but all things considered, I thought it was solid. Gonna miss seeing this cast together.
DraculaX
DraculaX - 1/12/2026, 6:43 PM
Did they went to the Kevin Feige school of screen writing?
dragon316
dragon316 - 1/12/2026, 8:20 PM
@DraculaX - whaaaaat why you say that according to most people marvel is perfect give venom kraven madam web back to marvel they say lokk what they did to taskmaster modokk and others
Urubrodi
Urubrodi - 1/12/2026, 6:43 PM
It showed lol Weakest season
cham2119
cham2119 - 1/12/2026, 6:47 PM
I’ve been making excuses for them but this is the last straw. There is no excuse to not have an outline as two of the few peoplw that had a guaranteed job coming out of the strikes. Wtf were they doing that whole year?
Malatrova15
Malatrova15 - 1/12/2026, 6:51 PM
ITS shows...the finale was positively minesotan ..such a VAN WRECK
thedrudo
thedrudo - 1/12/2026, 7:14 PM
Definitely the worst season.

The Upside Down stuff ended up being whatever for me but I did quite enjoy the final 15-20 minutes.

It's a weird look though for the Duffers to admit they spent more time writing Will's coming out scene than anything else in the series, and then this news drops.
String
String - 1/12/2026, 7:36 PM
For me, this explains a lot. The Duffers wrote that finale based on their vision for it back in 2017, eight years ago. They ignored a lot of what other writers had set up for the series. Season 5 Part I felt cohesive in setting up the final arc of stories. Part 2 felt very transitional and although it had bigger episodes, characters & stories felt edited to fit the Duffers narrative. And the finale felt so out of place when it comes to character motivations. For example, Mike feels like a totally different character from Part I. The Duffers had a particular vision and it's like they weren't supervising or had blinders on to the contributions of the other writers in previous episodes.

Personally, I think the Duffers were overwhelmed, couldn't back pedal to fix open narratives from other writers. Felt the pressure in particular to how to write El's closing arc and still respect Mille, the actress, in the finale. They knew their ending but didn't know how to get there because there was so much to resolve. I mean, Winona Ryder, had very little to do despite being the biggest name on the show. The Duffers just dropped storylines and logic to make the ending they envisioned 8 years ago to still fit. And it shows. I think when people do rewatches or sit with the ending longer they'll see the flaws in the logic of the finale compared to the rest of the season. Just another example of dropping the biggest ball in modern entertainment.
RealTurner
RealTurner - 1/12/2026, 7:51 PM
@String - There are no "other writers." They will have an overall writers room that decides the layout for the series together, including the brothers, and then each section is divided up for one of the staff writers to go away and actually hit the keys. Once something comes back, the brothers would review it, make any changes and feedback they like, and the process continues. No one outside of their control is suddenly putting in plot points that they'll be stuck with later; utlimately, it's on the guys in charge to herd the cats into a cohesive narrative.
String
String - 1/12/2026, 8:21 PM
@RealTurner - If what you are saying is true, then it makes the matter worse. But there are other writers accredited on other season 5 episodes. For example, according to IMDb, episode 4, the highest rated episode of the series has Paul Dichter and Caitlan Schneiderhan listed as writers. So, I do believe there were principal writers beside the Duffers, who I also believe as showrunners had to approve what they wrote.

The problem I have is writers wrote specifically a lot of subtexts for characters that audiences picked up on, which the Duffers flat out ignored. If I have to go through what that subtext is this will be a much longer post. I'll just point out; the subtext led a certain audience to believe a story was going one way and the Duffers did a terrible job trying to blunt it which created uneven character arcs and made it an unsatisfactory finale for those fans. I mean, there is a reason why the season 5 finale is listed with the lowest IMDb score for a Stranger Things finale.
RealTurner
RealTurner - 1/13/2026, 7:14 AM
@String - Yeah, the credited writers are the ones who actually wrote out the full script. If a movie is 1.5 hours, that's only 2 eps of TV in what is still 6, 8, 12 for Netflix, and would have been at times 24 eps in writers rooms for seralized things in the past. It is generally simply too much work for one or two people to physcially write all that out. But *what* they write in that script is decided by all the writers beforehand, and then worked on by the director(s) as well before rewrites. As I said, the writers fill in the brick-by-brick meat of the episode (which indeed is where subtext that was forgotten later may slip in) but the bones come from the top. That's the same issue in either case; the brothers needed to keep a tighter rein on those things back when they were introduced, but it's painfully clear from the finale that they didn't have meaningful character arcs for 80% of the cast during the final season.
RealTurner
RealTurner - 1/12/2026, 7:43 PM
It's just the way making shows works. When they start, they don't know how many seasons they will get. How much time or content they have to fill. And--though rarely--it goes both ways. MJS planned out five whole seasons for Bab5 and wrote almost all the eps himself; then it got axed at the end of season 4. He scrabbled to rush and cram in the story--just to then be given season 5 anyway, which was trash because he'd burned everything and was forced to somehow extend it.

No one is sitting down season 1 for ST and thinking "okay, season 3 can set up this, season 4 does this..." Actors schedules and interest is another big factor, as they won't be locked down for xx years from the start. Same thing with Lost. The entire Walt storyline was a product of them realizing "hold on a kid actor is gonna age too fast for the timeline of the show." They also wrote out at least one character because the actor was a nightmare to work with.

Of course, with something like Star Wars 7-8-9, when making all three was an absolute lock, it was pure insanity not to plan more than they did. There are times where it is possible. This wasn't really one of those times. It kinda overtook everything that they had planned from the start; a kooky retro show with modern horror asthetic about a world that mirrors our own but with monsters. "Oh yeah this is a wormhole to another dimention" would have been a Vodka filled rage binge a couple of months back.
TheJok3r
TheJok3r - 1/13/2026, 1:00 AM
@RealTurner - Well said; not many people realize how unstable these networks and platforms are when it comes to these shows. You can start out with an entire story planned out, only to be given less time than needed to tell it, or more time than needed, resulting in endless filler. All things considered, I think Stranger Things turned out as good as it could have under these circumstances.
RealTurner
RealTurner - 1/13/2026, 7:08 AM
@TheJok3r - I wanted more but didn't expect it. So, so, so few shows have ever really stuck the landing; the whole TV buisness model is "so long as it is popular make more," which isn't condusive to concice, structured storytelling with a decent endpoint. I wish they had committed to killing a few more of their darlings, but when you look back ST always gave the impression of being nastier than it was, with 1-2 sacrifical lambs each season well foreshadowed in advance and massive plot armor for everyone else. They needed to either whittle more along the way or just not introduce so much flotsam; when the mom survived almost being ripped in half, it was over in that regard.
Twinkie
Twinkie - 1/12/2026, 7:53 PM
I only liked the s1. In the first episode the bald girl grew her hair back therefore I turned it off
Nonameforme
Nonameforme - 1/12/2026, 7:56 PM
You can tell
Vigor
Vigor - 1/12/2026, 8:26 PM
You all really hated the finale? I wouldn't have guessed they wrote the script on the fly without this behind the scenes. Seemed solid
JackDeth
JackDeth - 1/12/2026, 8:45 PM
@Vigor - Most agree it was good. This site is full of whiny bitches who hate everything they watch these days.
Deklipz
Deklipz - 1/13/2026, 12:35 AM
@Vigor - I thought the first half of the season was cohesive but felt the second half fell apart and that the finale was intimately a disjointed mess, even if I did enjoy it for the DnD campaign of it all. The ONLY Athing that really bothered me was the Flayer fight. The whole team had plot armor and it was ridiculous. That thing would have stomped the whole crew on its first stretch and shit out the ones inside without a second thought.
Urubrodi
Urubrodi - 1/13/2026, 4:02 AM
@Vigor - The finale itself was ok, but imo very predictable. Plus, the final fight was just bad and the whole 11’s fate is up to your interpretation it’s cheap, I kind of hate when show do that.

The overall season for me was a disappointment, full of nonsensical and cringe scenes with the occasional cool moment. Episode 7 in particular was a hard watch.

Honestly think it was the weakest season of an overall great show.
SheepishOne
SheepishOne - 1/12/2026, 8:51 PM
It was a fairly satisfying finale that wasn’t perfect but didn’t leave me disappointed. Nothing ever hit quite like season 1 did, but all things considered the quality season to season was pretty good, and they stuck the landing well enough.

Personal opinion, while I thought Vecna was cool at times, I wish they never went down that route and instead just doubled down on the eldritch horror elements. Once they personified the upside down with Vecna, it lost a little something.

All in all, it’s still a great show though.
JackDeth
JackDeth - 1/13/2026, 12:40 AM
@SheepishOne - Thank you for the nuanced analysis. Rare here these days.
Polaris
Polaris - 1/12/2026, 9:34 PM
I can't believe they had 3 and a half years between seasons and yet had yo start filming without a script. What were they even doing during that time?? Even if we don't count filming and post it's a veeery long time.
slickrickdesigns
slickrickdesigns - 1/12/2026, 10:42 PM
The shows good, the finale could’ve been better.
skyshark03191
skyshark03191 - 1/12/2026, 11:36 PM
See I just don’t get this. Season 4 was released in 2022, and renewed like a week after its release. How do you not finish it off and polish the script in two and a half [frick]ing years? They make it seem like they were under a crunch but they had more than enough time you ask me. Also- way too many cooks in the kitchen. Youn could tell they were overwhelmed and having so many writers didn’t help cause they couldn’t seem to agree on anything. That one who said the audience would be demogorgon’d out for the final battle- get her a new damn job. The epilogue was great but that finale as a whole was not.
MadThanos
MadThanos - 1/13/2026, 3:46 AM
@skyshark03191 - I'd go straight to a bang with the first batch.
abd00bie
abd00bie - 1/13/2026, 6:37 AM
I think it was a mockumentary, something else is going to happen

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