Next spring,
The Flash and
Supergirl will be attempting a whole new type of crossover when the shows intersect for a special musical episode. While not much is known about how the episode will incorporate music into the narrative, Executive Producer
Greg Berlanti has promised some original compositions when the episode goes to air.
“Next week we’ll have to start talking about clearing music,” Berlanti told
Indiewire.
“I have a few ideas for tone and style in my head but we’re just starting to talk about what that can be. I do want to try and get an original piece of music written. As we make a deal on that we’ll probably make some announcements on the original songs...There are some writers I’m incredibly excited to work with.”
Melissa Benoist and Grant Gustin are no strangers to singing, with both actors having roles on
Glee prior to donning their superhero costumes. Before the musical, however, the CW will be having an epic crossover this fall, something Berlanti said he's both excited and intimidated by, due to the scope of combining the production schedules of all the shows at once.
"You really are trying to run a single production across three different productions. But they’re run as three separate entities. We have to figure out when we’re borrowing one actor from where. It’s a three-hour story, almost a miniseries...It’s very daunting when you hold them all together like that. Each one of these pages is 10 hours of shooting and a visual effects extravaganza. But hopefully it feels like a great kind of crossover comic book sell."
While many assumed that
Supergirl would also be a part of the crossover due to the show's move to the CW, it seems that the show will not be a part of the overarching story being told, though Kara herself will be.
"We’re telling one cohesive story; Supergirl will participate, but the storyline doesn’t actively begin there. There are some characters who show up in her episode, but the story begins with The Flash episode and goes to Arrow and Legends of Tomorrow. We’re just getting into designing the bad guy for it, and we start now but it doesn’t air until the end of November. We will put a lot of time between now and then figuring out visual effects sequences. Just today I was holding the three scripts back-to-back – that’s 180 pages of material."