The Rocker (film)

The Rocker is a 2008 American comedy film directed by Peter Cattaneo, starring Rainn Wilson, Christina Applegate, Teddy Geiger, Josh Gad, Emma Stone, and Jane Lynch. The film was written by Maya Forbes amp Wallace Wolodarsky, from a story by Ryan Jaffe.

years later, Vesuvius remains an immensely successful band, while Fish is working a mundane office job, which he is fired from for attacking a coworker who tried to force him to listen to Vesuvius new album. After being kicked out by his girlfriend, he is taken in by his sister Lisa Jane Lynch and her family. Matt Josh Gad, Fishs high schoolaged nephew, plays keyboards in an alternative rock band called A.D.D., along with his friends Curtis Teddy Geiger and Amelia Emma Stone. The band is scheduled to play their schools prom but the gig is in jeopardy when their drummer is suspended from school. Matt convinces the others to allow Fish to fill in, but he ruins the gig when he launches into an impromptu drum solo. However, Fish is so excited by Curtis songs and the chance to play again, he convinces them to let him join the band if he can deliver another gig. After repeated failed attempts, he finally succeeds in securing a gig at a club in Fort Wayne, Indiana. Because the other members are all minors, they have to sneak out to the gig, taking Lisas car without permission, resulting in the band being arrested.When Fish is kicked out of his sisters house and rents the basement of his favorite Chinese restaurant, the band invents a new way to practice via fourway iChat. The band wows audiences across the country, with everyone wanting to see the infamous Naked Drummer. The band is signed to a recording contract by the same label as Vesuvius, and are sent on a midwest tour. However, Fish commits stereotypical acts, despite the physical costs on his body, and he vandalizes a hotel room, which again results in the bands arrest. ........

Source: Wikipedia