James Mcavoy: 'Sex Scenes With Keira Knightley Were A Nightmare'

British actor James Mcavoy has said that he hated the sex scenes between himself and actress Keira Knightley in new film 'Atonement' because he found them "sweaty and uncomfortable".

28-year-old Mcavoy, who's probably best known for his role in British television show 'Shameless' admits that he dreaded filming the sex scenes with Knightley.

James said: "Sex scenes are always a nightmare. It's never easy and it's always a little bit sweaty and uncomfortable.

"When they call action, if you feel the lady's breast, it's your decision to feel the lady's breast. It's like, this is wrong. You have no parameters."

However, Keira Knightley was said-to-be just as embarrassed, but the pair apologised to each other afterwards.

McAvoy adds, "We carried on and about 10 seconds later we just said very sheepishly, 'Sorry about that.'"