Insomnia is a 2002 American psychological thriller film directed by Christopher Nolan and written by Hillary Seitz. It is the only film directed by Nolan that he is not credited with writing. A remake of the 1997 Norwegian film, it stars Al Pacino, Robin Williams, and Hilary Swank, with Maura Tierney, Martin Donovan, Nicky Katt, and Paul Dooley in supporting roles.
