2000 thriller in which Guy Pearce played an amnesiac (7)

I believe the answer is:

memento

(Other definitions for memento that I've seen before include "might be kept for sentimental reasons" , "A reminder of death - . . . . . . . mori" , "Souvenir, reminder of past events" , "Souvenir or token" , "Reminder that death is inevitable" .)

I've seen this clue in the Universal.

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