Though it may contain enough eye-candy to cause the average viewer insulin shock, all the CGI in the world can’t save Sucker Punch from its own ridiculous premise: a sexually abused 20-year-old girl finds solace in an elaborate video-game fantasy world that involves lots of machine guns, robots and skimpy leather outfits. Sucker Punch proves that director Zach Snyder is somehow refining the not so fine art of trashy CGI-saturated cinema. The movie is a thinly veiled excuse to string together a couple of disjointed samurai-sword-wielding sequences of over-the-top “awesomeness” with a seedy, …