THE sequel to a film based on a computer game isn't a good starting point for any film. If you thought the original "Mortal Kombat" movie was alright, and you like on-screen violence for the hell of it, then there is an outside chance you'll get into this. There's plenty of full-on battle heroics with good guys trancing weird, alien creatures (like a woman with four arms) and saving the world from destruction. But don't expect plot, or any departure from safe Hollywood formula.