"Power Ballad," in theaters Friday, suggests provocative issues related to creativity and industry but never follows through and ignores major ones.

In John Carney's Power Balld, wedding singer Rick (Paul Rudd) risks it all to claim credit after fading pop star Danny (Nick Jonas) turns his song into a hit.

Paul Rudd and Nick Jonas star as musicians involved in a case of songwriting pilfering in John Carney’s warm, charming film