The title of this animation-by-numbers leaves little to the imagination. Set in a world populated by anthropomorphic animals (think Zootopia; the people behind Rock Dog certainly were), Bodi (voiced by Luke Wilson) defies his father's wishes and leaves his home town for the big city, hoping rock icon Angus Scattergood (Eddie Izzard) to help him achieve his musical dream.
The execution couldn't be less in keeping with its freewheeling message. The story plays like a bad photocopy of a latter-day Pixar movie, and while the occasional joke hits, it pales in comparison to some of the bigger names in this genre. There's not even much rock in it, with the hero's penchant for acoustic guitars running counter to the very title.
One thing it does have going for it is recognisable voices. Luke Wilson is appropriately bland in the lead, JK Simmons does grumpy as only he can, while Izzard is a welcome but all-too-brief ray of eccentricity as a rock and roll moggy.
With simplistic animation and a story to match, Rock Dog is a laboratory made family adventure that is best saved for the very rainiest of days.