20 Most WTF Movie Cameos Of All Time

19. Harrison Ford - Bruno

Though Harrison Ford has a reputation for being pretty grouchy, he proved his good humour by agreeing to appear for a whole three seconds in Sacha Baron Cohen's 2009 mockumentary.

Bruno claims that he's secured an "exclusive one-on-one interview" with the actor, at which point we cut to Bruno accosting Ford outside of a restaurant, and Ford promptly tells him to "F*** off."

It's an hilarious, scene-stealing gag because it's so easy to believe this was real, even though Cohen would later admit that Ford was in fact in on the gag and the only celebrity in the entire movie who was actually clued-up beforehand.