It’s a more cutting social critique than people remember.

The resulting performances - lively, giddy and authentic - define the movie, while the upbeat ending sweetens an otherwise stinging social critique.

Dig a little deeper, though, and the social critique really kicks in.

The lovely upbeat ending sweetens an otherwise stinging social critique.

Three-and-a-half decades on, it's still a fantastic rock'n'roll record and a devastating social critique, but it's no longer dangerous.