So, Marvel made a huge successful cinematic movie and this makes Warner Brothers believe that they have to follow suit, huh? Okay, well, let's act for a moment that DC superheroes aren't already too powerful to have in a team and there's a threat that can actually challenge all 7 and let's say, for the sake of it, we depower them to their DCAU counterpart and we shove them in a team. How would you make this work, huh?
Here's 5 easy tips for you guys
5.) DONT FOLLOW MARVEL'S APPROACH!
I can't stress this enough actually. I get that Marvel made a gagillion dollars and you want a gagillion dollars too, but there's not much similarities between DC heroes and Marvel heroes. DC heroes are people we should aspire to be--Superman is what we're capable of being morally, spiritually and emotionally while Batman is what we're capable of being physically(set your mind to a goal and work hard enough and it's possible). Green Lantern is all about how you overcome adversity and Flash is about facing the fact that, no matter how fast you are, you can't outrun your troubles. The Lady Di is a feminist icon that every woman should aspire to be...minus her dumb star spangled strip club outfit that is; she's strong, brave, confident and able to go toe-to-toe with any man...or Superman, for that matter.--while Marvel tries to pass off their heroes as more "relatable", which is a nice way of making them toolbags.
Your heroes are who Marvel heroes look up to, except Batman who'd thrive in Marvel's universe of tools, and you should keep that aspect of them. They fight for a better tomorrow and a brighter day, Marvel's guys fight just to fight (They have an entire event tailored around heroes versus. heroes). That's why your heroes have JUSTICE in their names, while Marvel's guys seek vengeance.
Keep them pure, but find a way to make them relatable. I know it's tough, but you guys have a chance to shine now that Marvel's head guys are about to come off air. It's worth the investment of paying for a world class pen-man
4.) Don't worry about continuity, REBOOT, REBOOT, REBOOT! Forget Green Lantern, it was terrible. Don't attach failure to a project or it'll project failure to everyone else. I watched Green Lantern...twice-_- and I'm still bitter about it. Don't put Ryan Reynolds in this movie! I'm serious, I'll skip this if you do. Find someone who actually looks like Hal and put him in the movie.
Reboot Nolan's Batman if he doesn't comply, by that I don't mean create a new trilogy. Just stick another guy in Bale's place. Batman has the benefit of wearing a mask, unlike Superman, and thus no one cares much for what's under the mask. Luckily for you, Bale wasn't iconic as Batman so not a lot of people will miss him. Nolan's stories were what his trilogy was all about, not Christian Bale. Batman has 7 movies and 4 actors portraying him in them, people are used to seeing Batman change.
Try to keep Henny, but if Nolan is adamant about keeping his universe separate just cast one of the previous Supermen(Welling if he decides to wear the suit or Routh). We don't need four guys playing CK in less than 20 years.
3.) Don't make it Batman centric! I get it, he's the money maker for you guys, but he's also the weakest member of the group. If something is a threat to him it doesn't mean it's a threat to his super-powered ilk. Anything that Batman's batterangs or explosive can bring down should be no threat to Superman or the other members of the league. Don't have it be a movie where Batman is smarter, stronger, cooler, tougher than everyone else. I get it, he's the big ticket, but this movie isn't for him. You're not trying to generate interest in Batman, Nolan already did that for you guys. This is about the guys who don't get to shine like Green Lantern, Flash and Wondy. Don't worry about Batman, you can put him in a room drinking coffee and his fans would think he's the reason for the Justice League's success. There's a running gag out there about Batman and the Justice League that if you don't present your other heroes...heroically, there's no point in trying to create a universe around them.
Superman has to start the league because he's the most powerful member of the JL, excluding Martian, and he's the most infuential member in the DCU. If there's a threat that he cant handle, the rest of the DCU knows it's serious. He'll be able to get a team together faster than anyone else Have Batman be the Oracle/Watchtower operations commander, similar to what Nightwing does in Young Justice. Wonder Woman has to be the field tactician because she has the most experience fighting and leading troops not battle.
2.) A hero is only as interesting ad his villain. Now, as we know, Superman is powerful. Diana is an excellent fighter, Green Lantern's powers cone from sheer force of will, so you have to give these guys someone that can knock them down a peg. No, it shouldn't be Darkseid because he belongs to Superman. Darkseid wants to have Superman by his side, as his pawn. He looks at Superman as the son he always wanted. Orion is a lost cause and Kalibak is a failure, Superman would be a perfect knight/trophy to him. The whole idea of Darkseid just being a villain that shows up for Justice League fights is dumb. The idea of the Anti-Life equation being his reason for wanting Earth is far more stupid and hard to comprehend for a general audience.
What the Justice League needs is a heroes that lives off fear! Sinestro is big enough, not only is he big enough to knock down Superman and the others his powers can even effect Batman who wouldn't have such a combat role. Having Sinestro also means it's Lantern's movie. After what WB put on the screen the last time, I say good. Have him redeem himself here by making him take down the big threat. Make this Justice League movie your green machine's time to shine.
1.) Don't use the original 7. The big 5 should stay the course--Superman, Batman, Wonder Woman, Flash and Green Lantern--but the final two spots need tweaking. As much as I've cone to love Aquaman under Geoff Johns, I don't want him here. His powers are too aqua based. Martian is overpowered. Superman isn't, Martian is overpowered. Think Superman's powers...but with telekinesis, shapeshifting and mass manipulation. I'm glad DC moved him to Stormwatch because he belongs with the big boys.
In their place, I'm going for diversity. I've always hated the DC boy's club and I'll watch anything with a hot Asian lady so I'm putting Element Woman (Emily Sung) and Supermodel Vixen (Mari McCabe). Now, before you racis...I mean, Republi...I mean, Purists get on me for adding two minority women, let me say that I'm not putting them in just to put them in. Yes, I want a more deverse group--something Marvel lacked in their Avengers--but Vixen and Element Woman bring a different power set to the team. You don't have to weaken them and they're already great characters, especially Element Woman who you can write for as she's a Flashpoint creation with no origin to speak of.
This would make a Justice League movie interesting and keep people coming back for more. DC already has the three most iconic heroes in the world (Superman, Batman and Wonder Woman), they just have to make it mesh.
Personally, I'd rather have a World's Finest movie, but DC wants that money.