Superman Returns

Now that the four-way crossover between Supergirl, Flash, Arrow and Legends of Tomorrow has come to an invasive close, the hunt begins for DC references and easter eggs! One moment in particular saw Brandon Routh referencing his own Superman Returns past, but don’t expect Supergirl to be let in on the joke just yet.

The comic book movie craze may have exploded in recent years, but there have been movies and TV shows based on our favorite comics for decades. For all the action we see on screen, however, we hardly ever get to see behind the curtain at how it all comes together. Fortunately, we've managed to uncover dozens of behind the scenes images from your favorite comic-inspired movies. From The Dark Knight to Dredd, and Conan to Kick-Ass, we now have a little bit of an idea of what life was like on set during the creation of these beloved adaptations.

Without a great adversary, what good is a superhero? Without someone to punch in the face, Batman would just be some rich schmuck driving around in a weird-looking tank. Without someone on the receiving end of his shield, Captain America would just hang out at the V.F.W. all day. So let’s celebrate the villains. Let’s bring on the bad guys and give them their moment in the sun. With Avengers: Age of Ultron introducing another memorable baddie in the form of James Spader’s titular metallic menace, let’s take some time to run down the 10 greatest superhero movie villains of all time.