Possible Idea- Jack

I was thinking on my walk home from College that a film we could use is the Liam Neeson Film Unknown (2011).
The plot of the film is that Dr Martin Harris, played by Liam Neeson, is attending a peace summit in Berlin with his wife. He forgets his bag at the airport so must return to get it. He enters a taxi and on the way to the airport he is caught in a car crash and the taxi swerves into the river, he is brought out by the driver and slips into a coma. He awakens from the coma, not fully knowing who he is until he sees his watch. He soon discovers someone has taken on his identity and that no one, not even his wife (played by January Jones) believes him or recognizes him. With the help from a nurse, the cab driver, a retired Stasi agent, and an academic friend, he tries to unravel what's going on and sets out to prove who he is.

This is the sort of thing we are doing as it has one person losing who they were and knowing it to be true when someone else has taken their life and how they are no longer recognised eve by a loved one. We could also use a scene where the man who has taken over as Dr Martin Harris and the original Dr Harris both talk to a man and try to show them who he is as they have spoken over emails. The both start stating facts about the life of Dr Martin Harris such as taking biology as a career due to his father and talk of the information they were told by this man about his children.