The supporting thing can be harder to pop in and out of. The hardest thing is the people who have to come in and play, say, the bartender for a day - that's a lot harder than playing the lead role. You have to pop in and get it right. It's a lot of pressure to just pop in there and fit in and find your footing really fast.
I consider myself an atheist. My wife is Jewish. And I'm fine with my son being raised as a Jew. He's learning Hebrew and is really into it. I will talk to my own son about my atheism when the time is right. But there's a great tradition of Jewish atheism, there are no better atheists in the world than the Jews.
With 'Duplicity', I was a little bit like, 'This isn't that hard of a movie.' This isn't like some huge brain trust of a movie. You gotta be a little bit awake to follow the plot, but it's really just a kind of light entertainment. It's like those Cary Grant movies, which are not meant to be anything other than diverting. In a nice way.