Sir Laurence Olivier (Sir Kenneth Branagh) is making a movie in London. Young Colin Clark (Eddie Redmayne), an eager film student, wants to be involved and he navigates himself a job on the set. When movie star Marilyn Monroe (Michelle Williams) arrives for the start of shooting, all of London is excited to see the blonde bombshell, while Olivier is struggling to meet her many demands and acting ineptness, and Colin is intrigued by her. Colin's intrigue is met when Marilyn invites him into her inner world where she struggles with her fame, her beauty, and her desire to be a great actress.