The majority of Nolan's features have one common story element: The main protagonist experiences some sort of mind problem, that significantly contributes to the storyline. In Memento (2000), Leonard suffers a short-term memory loss that has been caused by the murder of his wife. In Insomnia (2002), detective Will Dormer suffers from insomnia. Thoughtout the Dark Knight trilogy (2005-2012), Bruce Wayne experiences a fear of bats, which inspires him to conquer fear and fight his mental suffering. In The Prestige (2006), the magician Angier seeks vengeance for his wife's death and constantly experiences visions of the moment she died. In Inception (2010), Cobb suffered the loss of his wife, whose suicide he might have provoked. As a result of this trauma, he constantly sees and visualizes his wife, as if she's still alive.
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