Several minutes of this comedy-drama, about the members of a has-been band that gets a second chance, are enlivened by Ben and Jerry Stiller as a team of music-industry executives with matching glasses. And Amy Brenneman desperately tries to deepen the role of one of the band members’ girlfriends, who’s threatened by a young producer obsessed with her man. But the movie’s repeated attempts to combine seriousness and humor as in a blender give it a dysfunctionally earnest tone. With Tony Guma, Craig Bierko, Bridgette Wilson, Will Ferrell, Jennifer Love Hewitt, and Donal Lardner Ward, who wrote the screenplay with Guma and directed.