Or it could just be that Warner Bros. & Sony are much more inept at making/marketing those types of movies than Marvel Studios. And flops won't destroy the entire industry of cape movies. Green Lantern was a massive bomb, yet we've still got superhero movies coming out of the woodwork. At worst, they'll just become the equivalent of b-movie action flicks, garnering a "eh, that looks kinda interesting I guess" response. But I just want my damn Doctor Strange movie to get here already, to hell with what happens to all the others.