There is a new feature up on Gamasutra by Ian Bogost, author of several great books on games. I have seen him give talks a few times and he definitely has some intriguing view points. In the article, Bogost takes issue with the idea that Heavy Rain is an interactive film and goes on to explain why, with some focus on the idea that films allow for editing. It is definitely worth a read,
although it contains some spoilers. Heavy Rain is on my list of games to play over the summer along with Red Dead Redemption and Starcraft II.