John Madden's film tells the story of an outrageous secret plan put together to conceal an Allied attack during the Second World War.
Kelly Macdonald played the cop in the crosshairs of AC-12 during 'Line of Duty' series six.
Kelly Macdonald was the show's big guest star for its sixth series, but she hasn't got around to watching it.
'Line of Duty' viewers are convinced that James Nesbitt's character Marcus Thurwell is very much still alive.
Line of Duty star Martin Compston has said that viewers will 'need therapy' after the next episode of the hit BBC drama.
The second episode of the new series of Line Of Duty marked the return of a crucial character.