Keira Knightley and Luke Thompson on 'This Morning'Credit: ITV
Keira Knightley and Luke Thompson on 'This Morning'
Credit: ITV

Key Points

  • Keira Knightley forgot she was in a movie with Luke Thompson.

  • The actors laughed about her forgetfulness on U.K.'s This Morning.

  • The pair currently stars together in the West End play, The Lives of Others.

Keira Knightley blames early pregnancy for her forgetful memory.

The actress and her costar, Luke Thompson, appeared on U.K.'s This Morning on Tuesday, Oct. 20, to discuss their new West End play, The Lives of Others. But during the interview, Knightley proved she's not one to remember the finer details.