Spencer is a 2021 historical psychological drama film directed by Pablo Larraín and written by Steven Knight. The film is about Princess Diana's existential crisis during the Christmas of 1991, as she considers divorcing Prince Charles and leaving the British royal family. Kristen Stewart and Jack Farthing star as Diana and Charles respectively, along with Jack Neilen and Freddie Spry as Prince William and Prince Harry, respectively. Also starring Timothy Spall, Sean Harris, and Sally Hawkins. It is the second film in Larraín's trilogy of 20th century iconic women, succeeding Jackie (2016) and preceding Maria (2024).

Spencer premiered at the 78th Venice International Film Festival on 3 September 2021, and was theatrically released in the United Kingdom and the United States on 5 November 2021. The film grossed $25.2 million worldwide on an $18 million budget. It received generally positive reviews from critics, with Stewart's performance garnering widespread praise. For her performance as Diana, Stewart was nominated for the Academy Award, Golden Globe Award, and Critics' Choice Movie Award for Best Actress.