I was hoping for an updated version of This Is Spinal Tap, but I was deeply disappointed. It's too punchline-based for me, and while a few individual oneliners made me chuckle for a moment, I just didn't find the bulk of it funny at all. It doesn't help that I never bought Andy Samberg as a washed-up mega-popstar (whereas Spinal Tap are instantly believable as a washed-up rock band). It doesn't help, either, that cramming in as many cameos as possible seemed to take priority over creating characters worth caring for.