Gamer is a 2009 American science fiction action film written and directed by Mark Neveldine and Brian Taylor. The film stars Gerard Butler as a participant in an online game in which participants can control human beings as players, and Logan Lerman as the player who controls him. Alongside Butler and Lerman, it also stars Michael C. Hall, Ludacris, Amber Valletta, Terry Crews, Alison Lohman, John Leguizamo, Sam Witwer and Zoë Bell.

Gamer was released in North America on September 4, 2009, receiving generally negative reviews from critics and was a box-office bomb, grossing $42 million worldwide against a production budget of $50 million.