Paul Greengrass exits Bourne 4 – will Damon follow suit? Paul Greengrass, who directed both The Bourne Supremacy and The Bourne Ultimatum, has exited the fourth “Bourne” movie. According to reports, two scripts were turned in for the film, a first one by George Nolfi and a second by Josh Zemuter. The Playlist has suggested that no one liked Nolfi’s version, but that Greengrass was not consulted by the studio in the hiring of Zemuter. It is unclear whether Greengrass’ departure will affect Matt Damon’s involvement, who is close friends with the director and also stars in his upcoming movie Green Zone.