Unman, Wittering and Zigo is a 1971 British thriller film directed by John Mackenzie and starring David Hemmings, Douglas Wilmer and Carolyn Seymour.

[3][4] The movie's title was parodied in Little Britain (Series 1 Episode 6, 2003),[5] and by a Rowan Atkinson sketch in the 1979 Secret Policeman's Ball concert for Amnesty International.

[17] David Mcgillivray wrote in The Monthly Film Bulletin: "Giles Cooper's TV play was in turn adapted from his 1957 radio production, and no doubt the nightmare fantasy of Lower Five B was most convincing when suggested only in sound.

The trouble with the film version is that Ebony's improbable boys, devoid of individuality and bristling with Lord of the Flies-style menace, now clash disconcertingly with their surroundings, a very real establishment in Llandudno.

Ebony himself is easily recognisable as a teacher struggling hopelessly to discipline a class of delinquents, and David Hemmings' performance succeeds in communicating the feeling of desperation that inexperience fosters.

But while John Mackenzie's capable direction suggests a greater involvement with his material than in his earlier One Brief Summer (1971) (although an inclination towards fussy camerawork – in the contrived linking shots – is still present), the nightmare violence is never entirely persuasive.