Leslie Poles Hartley was an English novelist and short story writer. Although his first fiction was published in 1924, his career was slow to take off. His best-known novels are the Eustace and Hilda trilogy (1944–1947) and The Go-Between (1953). The latter was made into a film in 1971, as was his 1957 novel The Hireling in 1973. He was known for writing about social codes, moral responsibility and family relationships.

The Go-Between is a 1971 British historical drama film directed by Joseph Losey. Its screenplay by Harold Pinter is an adaptation of the 1953 novel The Go-Between by L. P. Hartley. The film stars Julie Christie, Alan Bates, Margaret Leighton, Michael Redgrave and Dominic Guard. It won the Palme d'Or at the 1971 Cannes Film Festival.