Cypher, is a 2002 science fiction spy-fi thriller film directed by Vincenzo Natali and written by Brian King. The film follows an accountant whose sudden career as a corporate spy takes an unexpected turn when he meets a mysterious woman, uncovering secrets about the nature of his work. The film was shown in limited release in theaters in the US and Australia, and released on DVD on August 2, 2005. The film received mixed reviews, and Northam received the Best Actor award at the Sitges Film Festival.

Vincenzo Natali is a Canadian film director and screenwriter, known for writing and directing science fiction and horror films such as Cube, Cypher, Nothing, and Splice.