Whilst Galifianakis was wringing his hands over the prospect of diminishing returns, Bradley Cooper was simply eyeing the chance to re-team with his old mates from the first movie.

"Even if it's not a good script, I'd do it!” he said shamelessly. “When you have an experience like this with people you get along with, it's a rarity. So if someone says, 'Do you want to spend three months doing it again?' you’d do it in a heartbeat! It's a very intimate thing you go through, shooting a movie. You find out whether you really like somebody, or you very much dislike somebody pretty fast. It's like doing a sport together."

Meanwhile, Cooper has his own ideas as to where the sequel should go. Zach Galifianakis, look away now…

“We've gotta go to space or something,” says Cooper. “Some weird things (have) to happen (to top the original). We'll probably lose Doug again. I hope we lose Doug again. That'd be fun. Could we do it again? I don’t know. Home Alone 2 barely got away with it and that's only because they had Catherine O'Hara shout ‘we did it again!’”