Tom Munro on Gaga: She's quite a character. We originally intended to shoot her on a set. But sometimes when you have an idea, it doesn't necessarily gel and we ended up shooting her in a studio environment and really concentrating on her personality. That's another thing I learned from working with Steven: You can have an idea, but it doesn't always translate well on the day of the shoot, and you have to be open to changing your mind and not getting stuck. With a celebrity, it's not like you can go back the next day if you don't get it right.