"We would do improvisation together. And that in a way, had almost a "student-film side" where we'd be sitting there with Robert Downey and Jon Favreau and we're playing around, we're jamming around and we read those pages and in next couple of days that's what we do, so it was a good experience. Kind of frightening at first because you didn't quite know how it was going to work out, but they had some very talented people there so it worked out well."