Every movie buff loves a great cameo.

A well-placed cameo can even be the highlight of an already great film. Who doesn't love turning to their movie-watching partner and whisper-shouting, "GADZOOKS! THAT'S (insert person you recognize)!" We've compiled the 10 best movie cameos of all time (in no particular order). Check them out and then go impress your friends with your crazy movie knowledge.

Tom Cruise in Tropic Thunder

  

Paramount Pictures

Tom Cruise literally disappeared beneath the guise of aptly named movie studio executive, Les Grossman, in Tropic Thunder. He was legitimately less recognizable than Robert Downey Junior was as a white guy playing a black guy. That's saying something.