JB and KG, aka Tenacious D, go in search of the Pick of Destiny, an ancient guitar pick that will make them rock gods, in their first movie.

The humour is a mixture of schoolboy toilet gags, general silliness/quirkiness, and rock/culture references — undoubtedly, therefore, your mental age will dictate which bits (if any) you laugh at. Some jokes hit, others don’t, and whole sections seem to be there merely to ensure the movie gets to a decent running time.

If you’re already a Tenacious D fan it’s worth checking out, but if you don’t like them you’ll never like this. Personally, I think the music’s the best bit — and that’s all on the soundtrack CD.