In an interview with Jesse Stern (Modern Warfare 2 scriptwriter), when asked about the possiblity of a Modern Warfare 2 movie, he had this to say:
"It would work very well as a film. Hopefully, that's a conversation I'll have with somebody somewhere down the line. Jason West, Steve Macuda and the rest of the guys from Infinity Ward have an interest in doing it and Activision wants to do it. I'd be very curious to give that a try. You've got your source material to draw on, which is the biggest advantage in getting one of these movies off the ground."