My Week with Marilyn is a 2011 biographical drama film directed by Simon Curtis and written by Adrian Hodges. It stars Michelle Williams, Kenneth Branagh, Eddie Redmayne, Dominic Cooper, Julia Ormond, Emma Watson, and Judi Dench. Based on two books by Colin Clark, it depicts the making of the 1957 film The Prince and the Showgirl, which starred Marilyn Monroe (Williams) and Laurence Olivier (Branagh). The film concerns the week during the shooting of the 1957 film when Monroe was escorted around London by Clark (Redmayne), after her husband Arthur Miller (Dougray Scott) had returned to the United States.

Principal photography began on 4 October 2010, at Pinewood Studios. Filming took place at Saltwood Castle, White Waltham Airfield, and on locations in and around London. Curtis also used the same studio in which Monroe had shot The Prince and the Showgirl in 1956. My Week with Marilyn had its world premiere at the New York Film Festival on 9 October 2011, and was shown at the Mill Valley Film Festival two days later. The film was released on 23 November 2011, in the United States, and on 25 November in the United Kingdom.

The film received generally positive reviews and grossed $35 million worldwide. Williams and Branagh were nominated for the Academy Awards for Best Actress and Best Supporting Actor respectively.