Memento is a 2000 American neo-noir mystery psychological thriller film written and directed by Christopher Nolan, based on the short story "Memento Mori" by his brother Jonathan Nolan, which was later published in 2001. Starring Guy Pearce, Carrie-Anne Moss, and Joe Pantoliano, the film follows Leonard Shelby, a man who suffers from anterograde amnesia, resulting in short-term memory loss and the inability to form new memories. The non-linear storytelling technique is something that Nolan is famous for, the story follows the story follows Leonard as he tries to find the man who killed his wife and caused his memory loss.