Rock Dog

The official trailer for the animated film Rock Dog begins as a dog (voice of Luke Wilson) approaches his father (J.K. Simmons), pulls a guitar out from behind his back and says, "Dad, I've decided to become a musician." 

The trailer continues as we see his father's disapproval. In fact, most creatures in the young dog's town are in opposition of his musical dreams. But he finds inspiration when he encounters rock star Angus Scattergood (Eddie Izzard) and the pair team up to play together, despite all obstacles in their way.