Matt Damon won't be in Bourne 4

Matt Damon will not be in a fourth Bourne film.

The actor, who has played government agent Jason Bourne in the last three movies, admitted the future of the franchise is uncertain but expects the next instalment will be a prelude to the original 2002 Bourne Identity movie.

He told BANG Showbiz: "I don't know you know. I think it will be a prequel of some kind with another actor and another director before we do another one.

"I think we are probably five years away from another one. We gotta get a script. If you have any ideas please call Universal."

Matt has previously said he hoped to start work on a new Bourne movie in 2011, but later admitted he was unsure if he would sign up again following the departure of director Paul Greengrass.

Instead, the 39-year-old star - who shot to fame after co-writing and starring in Good Will Hunting with pal Ben Affleck in 1997 - wants to focus on directing, but only if the right project comes along.

He said: "I want a simple little human story. Something like Good Will Hunting or something that's smaller like that. Nothing too tricky the first time.

"I don't know if I'll be in it. I'd prefer not to be. I've heard from other people and Ben told me it's tough, it's a lot of hard work."

- Bang! Showbiz