Alistair Simms inspired portrayal of Miss Fritton transcends drag. It is one of the great comedy characters in film. Equally wonderful is Joyce Grenfell's character - Ruby Gates.

This is a movie you should curl up on the sofa with on a wet Sunday's afternoon and be transported to a time long ago when terrifying, rampaging school girls only gained our respect - not our ire! I hear that a remake is in the offing with Rupert Everett as Miss Fritton? He will have a hard job competing with the master - or should that be mistress? - Alistair Simms.

Go and rent it - it beats so much of what today goes for comedy.