By: Trevor Chartrand Despite the promise of a wacky premise, Roller Squad disappoints.  Its ambition and potential is overshadowed by a weak execution overall.  In fairness, Berty Cadilhac’s movie may appeal to pre-teens looking up to some “rad skaters” and, I suppose, makes a good jumping-off point for young imaginations to build a world around.  But as for the film itself, this series of goofy events featuring bumbling characters is ultimately a dud.