Tony Gilroy, the director of Michael Clayton and Duplicity , has signed on to direct the fourth film in the Jason Bourne franchise, reports Deadline .The film, currently titled The Bourne Legacy , comes from a script by Gilroy, who also wrote The Bourne Supremacy and The Bourne Ultimatum , both of which were directed by Paul Greengrass.Although leading man Matt Damon had previously stated that he had no desire to return ...