Rebellion, the developer responsible for Aliens vs. Predator: Requiem and Miami Vice: The Game, scheduling is the major factor working against movie-based games.
"The problem is it's actually quicker to make a movie than it is to make a game these days, by quite a big margin," CTO Chris Kingsley told Develop. "That's always a big problem, because often you're not given enough time to make the game. So you have to fit to the schedule that you have."
So, if that's the problem, Joystiq Biomass, what's the solution?