You know what sort of movie you’ve gotten with Joyful Noise long before Dolly Parton announces, apropos of nothing, that “I know what to do, yodel lee hee hoo.” You’ve already seen Parton grab spaghetti off a diner’s plate and throw it in co-star Queen Latifah’s face. You’ve seen Keke Palmer lead a rousing gospel choir rendition of “Man in the Mirror.” You’ve experienced the ups and downs of the wild, inconsistent shifts in tone and the perils of Todd Graff’s loose-limbed direction. But that unprompted half-a-yodel is a litmus test. Perhaps you’ve bought into the schlock Graff is slinging, shut off your mental faculties and embraced the Latifah-Parton show, in which case it’s just Dolly being Dolly. Alternatively, that avalanche of vomit that’s been amassing inside your throat with each inane, lazy moment finally finds its way onto the floor. I found myself somewhere between the two extremes throughout this exceptionally mediocre film, which only benefits from the fact that it’s never boring. The story of a small-town gospel choir prepping for a singing competition is singularly uninteresting, even if things pick up when they perform their pop covers (Usher and the Beatles are among those victimized alongside Michael Jackson).