Sienna Miller has played down her sex scenes with co-star Keira Knightley in their new movie The Edge Of Love, insisting it was just “the odd snog.”

The Factory Girl stars as Caitlin MacNamara in the film, based on the life of Welsh poet Dylan Thomas, and is required to share baths, a bed, and saucy glances with Knightley.

Miller, 26, credits her fellow actress and director John Maybury with making her feel comfortable on the set - but warns fans they might not get as much lesbian action as they expect.

She says, "I think people were hoping for a lot more than you get. We'd have the odd snog together. It wasn't all the time, but you know, who hasn't dabbled?

"I think Caitlin was quite a sexual person, and I know that she did, well, dabble a bit. And besides, female friendships can often be tactile and intimate."

Click to see Sienna & Keira out-skinny each other on the red carpet