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, Jorja Fox and Joe Pantoliano, the film follows Leonard Shelby (Pearce), a man who suffers from anterograde amnesia—resulting in short-term memory loss and the inability to form new memories—who uses an elaborate system of photographs, handwritten notes, and tattoos in an attempt to uncover the perpetrator who killed his wife and caused him to sustain the condition.

Sir Christopher Edward Nolan is a British and American filmmaker. Known for his Hollywood blockbusters with complex storytelling, he is considered a leading filmmaker of the 21st century. Nolan's films have earned over $6 billion worldwide, making him the seventh-highest-grossing film director of all time. His accolades include two Academy Awards and two British Academy Film Awards. Nolan was appointed as a Commander of the Order of the British Empire in 2019, and received a knighthood in 2024 for his contributions to film.