Oscar-winning actress Charlize Theron has been asked to slow down by her boyfriend, after nearly breaking her back when filming a stunt for her new movie, Aeon Flux.

"She's fine, but she could have been in a lot of trouble," her boyfriend, Stuart Townsend, told AP Radio.

He added, "She's like, 'Yeah, I'll do anything.' But I said to her, 'You know the stunt girl has got to start working now. Not you.'"