Before filming Austin Powers: The Spy Who Shagged Me (1999), Michael York advised Mike Myers to watch Smashing Time (1967) to get a feel for the Swinging Sixties.

The last film of Amy Dalby.

Several of the characters (Tom Wabe, Charlotte Brillig, Mrs. Gimble, Bobby Mome-Rath and Jeremy Tove) have surnames which are taken from the Lewis Carroll poem "Jabberwocky".

According to his memoir, this film was the source material and ironic inspiration for Elvis Costello's song "(I Don't Want to Go to) Chelsea".

First feature of Valerie Leon.