I think any actor should have a good knowledge about what everybody does on set, so that you're not somebody who just feels that because you're there it's happening. It's actually happening despite you being there with all this great work behind the camera. And I'm very much more appreciative of that as an actor now. Also I think I can be a help to directors in the sense that if they're under pressure I feel I'm somebody they can come to and say 'listen I'm going to have to put these three scenes together - we're not going to have time to just do one of them this afternoon, we'll have to do all three' and you're able to say ok - I understand you wouldn't have to make that decision if it wasn't being forced on you.