Source Code is a 2011 U.S. science fiction action thriller film directed by Duncan Jones and written by Ben Ripley on spec. It stars Jake Gyllenhaal as U.S. Army Captain Colter Stevens, who is sent into an eight-minute digital re-creation of a real-life train explosion, tasked with determining the identity of the terrorist who bombed it. Michelle Monaghan, Vera Farmiga, and Jeffrey Wright play supporting roles.

It had its world premiere on March 11, 2011, at South by Southwest and was released by Summit Entertainment on April 1, 2011, in North America and Europe. It received critical acclaim and was a box office success, grossing over $147.3 million on a $31.9 million budget.