Gemma Arterton has admitted to once punching a stranger after he groped her.
The Runner Runner actress said she thinks everyday sexism is "unacceptable".
Speaking to Stylist, Arterton said: "I've had [sexism] before; everyone's had it. Someone put their hand up my bum one time.
"He went to squeeze my arse but his hand went right up there and I ended up decking him. I know it shouldn't have resulted in violence but it's not acceptable."
In the same interview, the 27-year-old also told the magazine that she's never been happier, despite her brief marriage to Stefano Catelli ending earlier this year.
She stated: "Mum said to me the other day, 'Darling, you're going to be like Elizabeth Taylor and have hundreds of husbands', and I said, 'Oh well - that's just the way it's gonna be'.
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"But you know, obviously no-one gets married to get divorced, that's just life. It's the way it is.''
Watch a trailer for Arterton's Runner Runner, out in the UK on September 27 and US on October 4, below:
