The Bourne Legacy is an upcoming 2012 American action spy film and the fourth installment in the eponymous Bourne film series, which is based on Robert Ludlum's Jason Bourne novels.

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It is directed by Tony Gilroy, screenwriter of the first three films. The film is named after, but not based on, The Bourne Legacy, a later Bourne novel written by Eric Van Lustbader. The character Jason Bourne, previously played by Matt Damon, does not appear in this film.

Faced with the public and political fallout from the events of The Bourne Ultimatum, the CIA decide to shut down «Operation Outcome», the successor to «Operation Treadstone». Aaron Cross (Jeremy Renner), an agent of Operation Outcome, and Stephanie Snyder (Rachel Weisz), a doctor who helped create the Outcome agents, must find a way to escape before CIA agent Byer (Edward Norton) can have them assassinated.

George Nolfi, who co-wrote the screenplay for the Bourne Ultimatum film, was to write the screenplay for a fourth film, as always tacitly related to the novels by Robert Ludlum. Matt Damon was also attached to the project from the start. Julia Stiles as well as Joan Allen were asked to join the project at this time. Then this project was abruptly cancelled. When asked whether a fourth film in the franchise would get made at all, Damon said, «We can't keep going forever we may come back and shoot some other time." Paul Greengrass was slated to return as director; however, on November 30, 2009, he said he would not direct it, and Matt Damon later said that he would not make the film without Greengrass.

On June 9, 2010, it was announced that Tony Gilroy would write The Bourne Legacy and on October 11, 2010 Gilroy was confirmed as the director of the film, and that Jason Bourne would not be in The Bourne Legacy although it retains the name Bourne as to identify it as a continuity to the franchise.

The first teaser trailer was released on February 9, 2012, confirming the film's August