Confessions of a Window Cleaner is a 1974 British sex comedy film, directed by Val Guest.
The film is essentially an adaptation of a sex novel printed in paperback form. It was adapted for the screen in the 1970s, when the British film industry produced a large number of film adaptations of literary works. Sian Barber cites other examples of this trend Jane Eyre 1970, Wuthering Heights, Black Beauty 1971, The GoBetween 1971, Kidnapped 1972, Treasure Island 1973, Gullivers Travels 1977, The Thirty Nine Steps 1978, and The Riddle of the Sands 1979. Sian Barber points that adaptations of highbrow material for example, works by Henrik Ibsen, Anton Chekhov, Iris Murdoch and Middlebrow material for example, works by William Shakespeare, Charles Dickens, Rudyard Kipling, D. H. Lawrence were hardly unusual by the 1970s, but points to Confessions as an early adaptation of low brow popular literature. The series of source novels about Timmy Lea had benefited from a literary forgery, the notion that Lea was not a fictional character but the actual author. The series was a sexual fantasy masquerading as confessional writing, a genre which tends to attract audiences. When novice film producer Greg Smith became interested in adapting the novels to screen, the hoax was maintained and Timmy Lea received credits as the author of the source material. The actual author and screenwriter, Christopher Wood, hardly resembled his creation. ........
Source: Wikipedia