He may have been a major player in the pages of Marvel Comics for over half a century, but it was only recently that Captain America became the poster boy for the Marvel Cinematic Universe. The quintessential hero, it’s almost impossible to imagine what kind of fight would force him to turn against his fellow Avengers. But you might be surprised to find out that the comic book history of the squeaky clean, star spangled Boy Scout is as dark as they come. And if fans of comic book movies think their superhero blockbusters are getting a little too dark, violent, or serious, they’d better hope these famous moments from Captain America’s history are never adapted.