Line Of Duty star Martin Compston has admitted he once accidentally leaked a mammoth show spoiler while he lived abroad.The LOD star, who plays Steve Arnott in the BBC drama, accidentally let the cat out the bag during series three when he revealed Keeley Hawes’ return as Lindsay Denton – an hour before the episode aired.Martin will discuss the major blunder on tonight’s episode of Redknapp’s Big Night Out, with Jamie and Harry Redknapp, comedian Tom Davis and Daisy May Cooper.Explaining how it happened, the actor said: "I was living in LA at the time and I think it was when Keeley Hawes came back so I put out "she’s back everybody" but I forgot the clocks went forward in the UK so I put it out at 8 and the show came on at 9.""Luckily.
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