Is this the movie I'm thinking of?
Ok, I'm pretty sure this is the movie I've had vague memories about for about eight years now...
I remember the "monster" was some kidn of evil milk product, and I remember a scene of a guys face exploding with this milky stuff coming out. I would have the placed the movies in the 70's or 80's.
I'm pretty sure this is the same thing, or is there another movie out there with milk gone bad??