Hampton wrote the screenplay for Ian McEwan's Atonement. Hampton views the adaptation of O’Neill’s book, which is partly about playing cricket in New York City, as a challenge:
I quail at the idea of adapting it. This is a very difficult project, I know that. … I don't think it is possible to make cricket clear to people who don't understand the game. But luckily there isn't very much ball-by-ball stuff in this novel and it is actually more popular in the US than we imagine it is.