Next Jason Bourne film named on Twitter

Producer Frank Marshall announces news online

Bourne producer Frank Marshall has announced that the fourth film will be called The Bourne Legacy, adding that Tony Gilroy, the writer for the first three films, will return.

The screenwriter will put together the treatment for the project, Marshall announced on Twitter, leading to suggestions that Gilroy will also write the script.

The return of star Matt Damon is in doubt, after the actor announced he would only work on a fourth film if original director Paul Greengrass was involved – however, he left the project earlier this year.

Writer Gilroy is also rumoured to be replacing Greengrass in the director’s chair after he helmed 2007’s Michael Clayton and 2009’s Duplicity.