The DC movie universe relaunches with a new "Superman." It's got us thinking: Which is the best superhero movie of all? Our ranking of the top 50.

Any way you look at the last 25 years in film, there’s no denying that superhero movies have been a vital part of 21st-century big screen entertainment. Many refer to the release of “Iron Man” in 2008 as the official kickoff of what would become the moneymaking engine that resulted in a steady stream of blockbusters,