Kate Beckinsale has joked she will use her newly learned martial arts skills to frighten off any unsuitable boys who try to date her daughter.
After being cast as the villain in her director husband Len Wiseman's Total Recall remake, Kate hopes the image will stick with the friends of her 13-year-old daughter Lily from her relationship with Twilight star Michael Sheen.
She told Easy Living magazine: "All those boys hopefully will.
"I remember Len talking to Bruce Willis when Len did Live Free Or Die Hard and I think Bruce did some terrifying things when his daughter got a boyfriend. Len and I asked him 'When Lily starts having boyfriends, will you come over?, We'll all stand stand on the doorstep and scare the s*** out of them.'
"But maybe now I don't need Bruce. Now that I'm a villain, I can go solo."
Kate said being 39 didn't make her feel old, but having a teenage daughter did.
She said: "I grade age much less by the number than by how shocking it is to have a child who is the age mine is.
"I haven't experience a full-facial collapse, or grown a beard. Those things probably will happen, but they haven't yet.
"It's more of the thing about being embarrassing to somebody. I can't dance at a party where there are teenagers without clearing the floor.
"Those are the things that make me go, 'Wow, I'm old.' It doesn't matter if you're the bad girl in an action movie - you're a parent; everybody leaves."