De Bourne-films zijn allen gebaseerd op gelijknamige boeken van Robert Ludlum, hij schreef na The Bourne Ultimatum overigens ook nog The Bourne Legacy.
[eng]"We'll probably do that in about a year and a half. We're all signed on in principle, in the sense that we've all agreed that we want to do it, but we're not going to do it unless we have a great script. It's ours to lose at the minute, and if we do make a third one, we want to make it as good as the first two. And if we can't do that, then we're going to have to let it drop."[/eng]
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