Williams will play top actress Marilyn Monroe in her new movie. Williams, 30, was the winner of the Oscar-nominated role in Brokeback Mountain in 2005 and performed well in Shutter Island.
In addition, Kenneth Branagh will play as Sir Laurence Olivier, Julia Ormond as the actress Vivien Leigh and Dame Judi Dench as Sybil Thorndike, British veteran artist.
Stories My Week with Marilyn Monroe's life about a week when he escaped from the routine schedule of Hollywood and went to England in the 1950s to play in The Prince and the Showgirl.
British actor Derek Jacobi and young stars like Dominic Cooper and Emma Watson are famous in the Harry Potter films will also appear. Simon Curtis will be the director of the film.
The film was made with the collaboration between BBC Films, Trademark Films, and the Weinstein Company. Today, shooting has begun in Pinewood Studios, England.
That is planning a second film about Monroe is still one of the most famous sex symbol in the world for more than 40 years after his death.
Australian actress Naomi Watts will play Monroe in other Hollywood movie bejudul BlondeBlonde expected to begin filming in early 2012.
based on the biography of Joyce Carol Oates writing.