Movie reviews: Before I Go To Sleep, Life of Crime & Sex Tape

How can you protect yourself if you don’t know who you are? Adapted from the bestselling thriller by SJ Watson, Before I Go To Sleep (15A) opens with Christine (Nicole Kidman) waking in the morning to realise she doesn’t recognise the man sleeping in her bed; worse, when she looks in the mirror, Christine doesn’t even recognise herself.

The man is her husband, Ben (Colin Firth); slowly, patiently, he tells Christine that as a result of a car accident years ago, she suffers from an atypical amnesia that causes her to forget everything she has learned on any given day. When Ben leaves for work, however, Christine discovers a video-recorder on which she finds a film of herself warning against trusting Ben.But why?