Ben Affleck had to take a break from working with Matt Damon.
The pair got their break in Hollywood writing and starring in Good Will Hunting
and subsequently worked on a number of films together, but he felt they needed some time apart so they could both develop their respective careers.
Ben, 40, said: "We wanted to have our own identities; this whole Matt and Ben thing was so strong it kind of upstaged whatever the movie was. I think it's been long enough now, so we're about to do this movie together called Whitey, about this famous gangster [Whitey Bulger] in America. Matt's going to play him and I'm going to direct."
Ben has directed three films to date - Gone Baby Gone
, The Town
and new spy thriller Argo
- which have all been critically acclaimed.