Originally Posted by Lord
-You can't make a mainstream Superhero film with a big budget, it's impossible, they're only silly comic book: Boom, Superman: The Movie happens
-You can't make a dark superhero film, that won't bring in kids and superhero movies are no longer profitable: Batman 89 happens
-You can't make a team of heroes with such flashy powers: X-Men happens
-It's the 21st century, you can't make a superhero film with their colourful costumes now, it's just silly: Spider-Man happens
-Batman is done: Batman Begins
-Begins didn't do much money, and the Joker can't be done by any new actor, and Ledger? The gay cowboy? He can't pull off the role, he's just a pretty boy: The Dark Knight
-You can't have a god in the same universe as Iron Man, that film was realistic, and that kind of crossover movie? Will never happen: Thor and The Avengers
-It's impossible to have a crossover universe, they will f*** it somehow, and magic and science can't coexist: The Marvel Cinematic Universe
Not everything that works in comics can work in films, that's true, but the interesting thing is that as time goes by, comic book adaptations have been proving that more things from comics can work in movies than we expected.
And about Iron Man, Favreau wanted the film to be the most realistic it could be, he even was inspired by Batman Begins, then he added a few nods to comic book fans and it ended up growing a whole universe, if they made gods and a rocket racoon work in Iron Man there's no excuse for DC not to be able to do the same, just by adding a vigilante dressed as a Bat you're making this universe more than just science fiction, it's all about expanding, keeping it in a bottle.