Jolie and Pitt start an affair on the set of Mr. and Mrs. Smith. Jolie:
Because of the film, we ended up being brought together to do all these crazy things, and I think we found this strange friendship and partnership that kind of just suddenly happened. I think a few months in I realized, ‘God, I can’t wait to get to work.’ … Anything we had to do with each other, we just found a lot of joy in it together and a lot of real teamwork. We just became kind of a pair…It took until, really, the end of the shoot for us, I think, to realize that it might mean something more than we’d earlier allowed ourselves to believe. And both knowing that the reality of that was a big thing, something that was going to take a lot of serious consideration.