You know what a photobomb is, right? It's a distraction from the main focus of a photo, whether accidental or deliberate. If you've ever been in a shot where someone has popped up from out of nowhere behind you, you've been photobombed.
And sometimes that photobomb has been due to one of our geeky celluloid pals.
We've collected 14 of them for you, mostly from photobomb.net and ThisIsPhotobomb/. Some of them have our favorite celebrities doing the photobombing, others show them being photobombed. Either way, they're amusing as hell.