Deep End is a 1970 psychological comedy drama film directed by Jerzy Skolimowski and starring Jane Asher, John Moulder Brown and Diana Dors.

Set in London, the film centers on a 15-year-old boy who develops an infatuation with his older, beautiful co-worker at a suburban bath house and swimming pool.

The next morning, Mike disrupts a foot race directed by the physical education teacher and punctures the tyres of his car while Susan is driving it.

Mike becomes more insistent, chasing Susan around the rapidly filling pool, and finally hitting her in the head with the ceiling lamp, injuring her.

In The Guardian, Ryan Gilbey wrote: "The consensus when it premiered at the Venice Film Festival in September 1970 was that it would have been assured of winning the Golden Lion, if only the prize-giving hadn't been suspended the previous year.

[8] Kevin Thomas of the Los Angeles Times called Deep End "a masterpiece" that "shows Skolimowski to be a major film-maker, impassioned yet disciplined.

[9] Film critic Andrew Sarris described it as "the best of Godard, Truffaut, and Polanski, and then some; nothing less, in fact, than a work of genius on the two tracks of cinema, the visual and the psychological".

[2][12] Roger Ebert of the Chicago Sun-Times gave the film two-and-a-half stars out of four, calling it an "observant and sympathetic movie", but criticizing its ending.

[13] Roger Greenspun of The New York Times wrote: "Although it has a strong and good story, Deep End is put together out of individual, usually comic routines.

"[16] Writing of the film's restoration in 2011, The Guardian's Steve Rose wrote, "Deep End is bravely ambiguous and disjointed, lurching unpredictably between comedy and creepiness; but the characters are bracingly down to earth…In fact, everything about this singular film – the camerawork, the imagery, the soundtrack – feels vibrant and surprising in a way that makes most modern coming-of-age movies look formulaic and, well, shallow.

"[17] Slant Magazine's Jaime N. Christley praised "Skolimowski's hallucinatory, dissonant, yet compelling tale of hormonal confusion".

[18] In The Village Voice, Michael Atkinson called it a "strangely impetuous study of coming-of-age sexual muddle, full of whimsy and abrupt ideas, and intoxicated from a distance, it seems, by Swinging London's free-love commerce".

[22] The restored film was re-released in UK cinemas on 6 May 2011 and on Blu-ray Disc and DVD on 18 July 2011 as part of the BFI Flipside series.