Celebs who have gone bald for a movie role....

or in the case of Britney Spears because she felt like it:



Sigourney Weaver in Alien 3:



Cameron Diaz in an upcoming film:



Natalie Portman in V for Vendetta:




Of course no one can forget Demi Moore for G.I. Jane:




John Travolta in an upcoming movie - he looks good with his head shaved, much better than with a hairpiece:




Cate Blanchett for the movie Heaven:




Persia Khambatta for Star Trek: Original Motion Picture




Robin Tunney for Empire Records