The San Diego Comic-Con is about a lot of things, such as new footage of hyped-up movies, announcements about fan-favorite comics, and general discussion of all things nerdy. But, for plenty of people, there's another draw at the nation's largest comic convention: the costumes.

Cosplay, or costume play, is all about dressing up as characters from movies, comics, anime, television, and basically any other medium with recognizable characters. It's all the rage at gatherings such as Comic-Con. Onlookers can be trapped in a sea of superheroes, elves, aliens, and others.

Some people add new spins on recognizable characters, while others just go for the most realistic takes possible. And at Comic-Con, it's a free-for-all of fans trying to one-up each other, each one competing to have the best costume at the convention.

Here are a few favorites from Comic-Con 2012.