Rachel Weisz Battles Against Botox

Rachel Weisz is on a mission in the battle against Botox: She thinks actors should be required to go au naturel when it comes to one of their greatest tools -- their faces.

"It should be banned for actors, as steroids are for sportsmen," Rachel tells the UK edition of Harper's Bazaar of getting Botox injections. "Acting is all about expression; why would you want to iron out a frown?"

A hypothetical ban on Botox could mean a problem for some of those preternaturally smooth faces out there who swear by the stuff: Not only has Virginia Madsen admitted she uses it, she's a spokesperson for Allergan, Inc., which makes Botox and Juvéderm.

"As I started to talk about it and as it ended up in print there was such an overwhelming response from friends and family, lots and lots of actors, people on the street," she said. "They were surprised that I looked so 'normal.'"