The Bourne Continuum

A fourth Jason Bourne movie is in the works.

The third – and until now the final movie in the spy trilogy – film The Bourne Ultimatum won an Oscar on Sunday night for Best Editing.

According to reports, Matt Damon and director Paul Greengrass are both back on board for the new adventure.

However, because of prior commitments it could be a few years before cameras start rolling.

That should give producers time to figure out Bourne's next step, considering late author Robert Ludlum penned only three bestselling novels about the amnesiac secret agent on the hunt for the shady figures who turned him into a steely killing machine.

Two sequels by Eric Van Lustbader, The Bourne Legacy and The Bourne Betrayal, haven't been reviewed quite so kindly.

Matt, for one, didn't seem too excited about his character's future prospects after Ultimatum's mystery-resolving (yet helpfully open-ended) denouement.

Last year he told Entertainment Weekly magazine: "I just don't see what story you could do that would feel right.”

''It's not like you can bump him on the head again and give him amnesia. Someone suggested we could do one where Bourne loses his car keys... If that's what they're coming up with, maybe a break isn't a bad idea."