Evangeline Lilly is a "pick-pocket".

She said: "On 'Ant-Man', I took a rubber stamp from the office of Hank Pym, who's played by Michael Douglas.

"I'm a bit of a pick-pocket on-set. If something is small enough to go in my pocket and it will be neat memorabilia, it's gone."

Away from work, the 35-year-old beauty loves spending time with her three-year-old son Kahekili - who she has with partner Norman Kali - though she admits the youngster's interactions with other people are sometimes awkward.

She explained in an interview with People magazine: "He's three and he loves to talk. We were at a polo match, and he saddled up to this older boy and said, 'Hey, I like your boots. Where'd you get those? From a horse?' His conversation starters can be a bit awkward."

The former 'Lost' star also revealed she used to pretend to be someone else when she was spotted in the street.

She said: "It's been better since 'Lost' finished. I still always get [my 'Lost' character name] 'Kate!' and 'Freckles!' I used to go, 'Oh, no, I just look like her', but I've sort of given up on that. It's too much work."