2. Thinking Everyone Has Batman's Rogues Gallery
It would appear now that, in the wake of the massive Avengers success, not only is the cinematic comic book universe coming together, but also that characters are turning into individual franchises. Obviously this isn't the first time this has happened, the four '80s Superman movies are all sequential and the Burton-Shumacher Batman films all come within nine years of each other and can be seen as together. Yes, even Batman and Robin. You've got to take the bad with the good, people. The problem with this is that Batman and Superman have much stronger rogues galleries than the likes of Hulk and Iron Man. Here are two examples. Batman has the Joker, Two-Face, Ra's Al Ghul, Bane, the Riddler and Catwoman who all have enough of a recognised history in the comic universe to appeal to a mass audience at the box office. Iron Man has Iron Monger (admittedly a good origin bad guy) and the Mandarin who is good for mass appeal, but then the well starts to run dry. It's the product of taking superheroes who were, largely, not A-list reads before the Avengers plan picked up speed with the Iron Man film, making them the key draws. Iron Man
leads the Marvel universe and the well of super-villains is already running dry. And we all know what happens next...