My Week with Marilyn, starring Michelle Williams as Marilyn Monroe, will have its world premiere at the New York Film Festival in October this year, it is understood.

The film is based on excerpts of a diary by British writer Colin Clark that was published in two books in 1995 and 2000. Along with Williams, the film also stars Kenneth Branagh as Olivier, Dougray Scott as Miller and Dame Judi Dench.

Directed by Simon Curtis, the film is based on a week that Clark worked as an assistant with Monroe while she was filming for The Prince and the Showgirl in the UK in the early summer of 1956.
 
The film had Monroe working opposite Sir Laurence Oliver and was shot when she was on a honeymoon with her husband, playwright Arthur Miller.

"After seeing Marilyn Monroe so often portrayed in films as a caricature, it is a pleasure to see this complex personality and unique on-screen presence portrayed so well by such a talented actress as Michelle Williams," said Richard Pena, program director for The Film Society of Lincoln Center that backs the festival.

The film, which will look to compete in Hollywood‘s Oscar race this upcoming season, will get its New York Film Festival premiere on 9 October and be released in theatres on 4 November.