Uh-oh. Rachel Weisz better sleep with one eye open after insulting a good portion of her celebrity counterparts who swear by the face-freezing serum Botox in a revealing new interview.

In a provocative chat with Harper’s Bazaar U.K., the British star launched a verbal war against the popular cosmetic procedure.

“It should be banned for actors, as steroids are for sportsmen,” Rachel said.

Rachel believes that free facial movements are essential to good acting, and wiggling your nose or batting an eyelash can be sort of tough when your face looks like an airbag.

“Acting is all about expression; why would you want to iron out a frown?”