I doubt there is such a thing, or at least not one that really works all that well. (But if there is, I'd love to hear about it!)
It might be possible to simulate the more subdued color spectrum of film with color manipulation, but the big problem (I believe) is the emphasized edge constrast that video adds whenever a bright area is adjacent to a dark area on the screen. Film doesn't have this effect, and removing the effect in any sort of a convincing fashion from existing video would not seem to me to be an easy task.