Superheroes (and villains) in wartime photographs
During WWII many superheroes played a big role in motivating troops and getting out pro-America news and ideas. Superman especially had a big American propaganda role in the war.
It's also an interesting, nerdy, what-if discussion to wonder what the wars would have been like if superheroes really existed. What if the cold war had not just been an escalation of nuclear weapons, but super powered humans as well. Several comics, including the very interesting Superman: Red Son explore aspects of this.
These pictures, however, are a lot lighter than those topics. Simple photoshops of heroes and villains into old war pictures. Captain America, Superman, Batman, and even the Joker and Darth Vader make appearances. Fun stuff, and I'd probably watch a movie that included any one of these scenes.
