Jessica Chastain refuses to date fellow actors because she is too worried about the attention she would attract as one half of an all-star couple.

The actress once stepped out with another celebrity, but Chastain was so fearful about the possibility of being photographed she pledged never to have a famous boyfriend again.

She tells Britain's InStyle magazine, "I have a rule. No actors. I have dated an actor before, at Juilliard (acting school), but since then, I've only been on a couple of dates with one and I was so freaked out someone was going to take a picture of us, because they were famous.

"I realised I wanted just to be able to hang out with someone... And I didn't want to talk about the business, first of all. I love movies. But I love talking about them like when I was 15 years old. I'm a film fan, but I don't want to talk about auditions or what movie I'm gonna do. I find that so boring."

Chastain refuses to detail her current relationship, but adds, "If you fished around enough, you could find some information. To be honest, I never talk about it. Some people in the fashion world know, though."