I never talk about 'Harry Potter' because I think that would rob children of something that's private to them. I think too many things get explained, so I hate talking about it.
The first time that I came to New York to work properly was the mid-'80s, but I was doing eight shows a week. You have no life. Going to a punk rock club - or whatever the music was at that time - would not have been on my agenda.
I've learned, having been on a lot of sets, the good news is that by definition you are surrounded by experts. They get fired if they're not - unlike in the theatre!