Sir Laurence Olivier is currently Now Making a movie in London. An film student, young Colin Clark, really wants to participate and he frees himself a project onto the place. When film star Marilyn Monroe arrives for the beginning of shooting, most of London is eager to find that the blond bomb shell, while Olivier is still fighting to satisfy her demands and behaving ineptness, and Colin is intrigued by her. Colin's snowball is fulfilled when Marilyn invites him where she fights for a great actress.