"Why 'guilty pleasure' (an expression that's always puzzled me)?
If it's a pleasure, why feel guilty about it? If the guilt is for reasons that make sense to you, then stop doing whatever makes you feel that way, although in my experience, people are confusing 'guilt' with 'shame'. There's nothing to be ashamed about if you enjoy OTT expoloitation movies. Chances are, critical & popular opinion will be calling Piranha 3D 'classic' in a decade or so. More power to ya, viewers! And Dan and buddy ... sorry, it's a bummer you can't see it, but there are good reasons for it being '18' :-("