Actress Keira Knightley was unfazed when her THE EDGE OF LOVE co-star Sienna Miller stripped completely nude to film a bath scene together - insisting it's all part of her job.
The stars play two lovers of poet Dylan Thomas in the 2008 period drama, and both bared their flesh for the steamy scene.
But while Knightley opted to remain partially clothed for shoot, she insists she wasn't alarmed when Miller got naked before jumping into the tub.
Instead, she was more concerned about the freezing temperatures of the bath water.
Knightley tells Moviefone.com, "I think we're both used to doing things like that in our job. It was very soapy water, and it was a closed set and all the rest of it. And I actually had clothing on. She didn't. Well, I had something on. No, it was sort of fine. It was just a problem because the bath water got really cold."