Iron Man

The Marvel Cinematic Universe started with a bang named Robert Downey, Jr.. When he was cast as Tony Stark in Iron Man, a lot of folks wondered what the plan was, especially since he wasn't too many years removed from his legal problems. Casting Downey in the role was just about the best decision a producer has ever made, as he gave Stark a swagger that made the film into something special. The film also did something that won over fans – it gave them the traditions without becoming fan service. First generation Iron Man appears, but with a justification that not only makes sense, but feels absolutely right. The film is full of great performances, and the effects are amazing. The music is really good, but more than anything, it's just a lot of fun. Between Downey's brilliant tightrope-walk between funny and serious, Paul Bettany's voice-work as JARVIS, and Pepper Potts as interpreted by Gwenyth Paltrow, the performances are all excellent. Jeff Bridges as the villain is just about perfect for a bad guy who doesn't look like a villain! Why it's on the list: Iron Man established the Marvel Cinematic Universe, and left a lofty mark for all the movies to live up to.