Want to know how to make a action packed sci fi? Look no further than Mutant. Its not a perfect flick but what it does do is offer up tons of action from beginning to end. This film is never, ever dull. CGI is mostly pretty decent too and the acting is competent enough to get you engaged with the characters. In summary, if China with its fledgling film industry can produce a sci fi this entertaining, what's Hollywood's excuse for the dull, poorly written rubbish it keeps churning out?