An iffy idea quickly runs out of steam in “Limelight,” a mockumentary that sets out to diss the already afflicted art of karaoke. Mainly, it serves to prove that what Christopher Guest does isn’t nearly as easy as it looks. Pic could do some vid biz for undemanding auds wanting a night in from the bars.
Low-budgeter is ever-so-slightly amusing when you think its fame-obsessed subjects are for real, but most auds will pull the plug around the time the country singer (Lauren Matthews) chirps about being abducted by aliens, the part-time wrestler (John Foley) starts cross-dressing for his therapy sessions, or the would-be opera singer (Mia Lee) acts out her phone-sex day job for the camera. It helps set the stage when helmer Terry Lukemire adds a few legit performers into the mix, but that ultimately underlines how forced most of humor is. There are a few funny lines, as when the talentless Ace Stradlin (producer Greg Shields) boasts of his upcoming Mall Tour of America, “although they don’t know about it yet.” But not much more could have been done with such a spoof-proof subject.