"It was great to get Dawn French and Jennifer Saunders involved. Really funny people can be hard to be around because you feel dull and slow, but they were great. I threw them a total curveball in that when I first recorded them, we spent the whole day, finished all their lines, and as I was listening to playback I thought it was good but not great. I couldn't figure out what was missing. So I asked them to switch parts and they didn't freak out. They gave it a try and then in five minutes time everyone was beaming. Of course, Dawn French is Forcible -- what were we thinking?!"