It's a tough life being Keira Knightley. On this week's Graham Norton, the actress was on chatting about her career and, erm, her unusual sex-faces in period drama A Dangerous Method.

Knightley described, amongst other things, how she had to road-test her O-Face over Skype with acclaimed director David Cronenberg, but not before the app froze on a particularly weird-looking face.

She went on to discuss her time on-set with James McAvoy during the production of Atonement and talked about how Joe Wright wasn't exactly subtle with his directions.