Green Zone star Matt Damon has ruled out appearing in a fourth Bourne flick and said he's ``just saying no.'' The 39-year-old actor took on the role of agent Jason Bourne in the first three movies but said he isn't interested in coming back for a fourth and believes the film needs to take a different direction according to an interview with Parade.com.
Matt Damon says 'no.' to 'Bourne'