Endless Night is a 1972 British horror-mystery film directed by Sidney Gilliat and starring Hayley Mills, Britt Ekland, Per Oscarsson, Hywel Bennett, and George Sanders. Based on the 1967 novel Endless Night by Agatha Christie, the plot follows a newlywed couple who feel threatened after building their dream home on cursed land.

Hayley Catherine Rose Vivien Mills is a British actress. The daughter of Sir John Mills and Mary Hayley Bell and younger sister of actress Juliet Mills, she began her acting career as a child and was hailed as a promising newcomer, winning the BAFTA Award for Most Promising Newcomer for her performance in the British crime drama film Tiger Bay (1959), the Academy Juvenile Award for Disney's Pollyanna (1960) and Golden Globe Award for New Star of the Year – Actress in 1961.