Cross “Bill & Ted’s Excellent Adventure” with “Men in Black” and you have a rough idea of what to expect. Two slackers stumble upon a “sauce” that confers paranormal powers, but also invades the body with alien parasites. There’s plenty of left field humor (although not often funny) and some moderately cool special EFX. The story starts out with a fun feel, but ends up confusing and dumb. Writer/director Don Coscarelli (Bubba Ho-Tep, Phantasm) loves the off-kilter, but isn’t sufficiently imaginative to make his movies anything other than good-natured cult ramblings.