If you loved Bandslam, try Joyful Noise
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Todd Graff, and they sit in Comedy / Music territory. If that's the register that drew you to Bandslam, the second film will land in a comparable space — through a different lens.
What Joyful Noise is
Here's a movie that's not afraid to ask, "what if gospel music...but comedy?" Two opinionated women battle for control of a small-town choir as they prepare for a national competition. It perhaps overshoots the joyful mark, but it's certainly a noise.

