Castings make movies - and that notion is no different when it comes to movies based on comic book heroes and villains. There have been some absolutely horrific casting decisions in comic book movies over the years - George Clooney as Batman, Arnold Schwarzenegger as Mr. Freeze, Julian McMahon as Doctor Doom, Topher Grace as Venom, Vinnie Jones as Juggernaut and Wes Bentley as Blackheart to name just a few examples - and they have sullied the movies they were in, both in the eyes of critics and fans alike. On the flip-side, good castings have been key to earning comic book movies mass critical acclaim and box office success. Some of the biggest and most successful comic book movies have now earned over $1 billion dollars worldwide (The Dark Knight, The Dark Knight Rises, Iron Man 3 and The Avengers) and the genre as a whole is now one of the most popular in Hollywood. So let's celebrate the great castings - the castings that saw actors who were born to play a particular role having fun doing so and giving the performances of their lives - and performances that made the whole movie-viewing experience more entertaining than it otherwise would have been. Here are eleven perfect casting choices that made comic book movies...