Dial M for Murder is a 1954 American crime thriller film directed by Alfred Hitchcock, starring Ray Milland, Grace Kelly, Robert Cummings, Anthony Dawson, and John Williams. Both the screenplay and the successful stage play on which it was based were written by English playwright Frederick Knott. The play premiered in 1952 on BBC Television, before being performed on stage in the same year in London's West End in June, and then New York's Broadway in October.

Sir Alfred Joseph Hitchcock was an English film director. He is widely regarded as one of the most influential figures in the history of cinema. In a career spanning six decades, he directed over 50 feature films, many of which are still widely watched and studied today. Known as the "Master of Suspense", Hitchcock became as well known as any of his actors thanks to his many interviews, his cameo appearances in most of his films, and his hosting and producing the television anthology Alfred Hitchcock Presents (1955–65). His films garnered 46 Academy Award nominations, including six wins, although he never won the award for Best Director, despite five nominations.