 Her first appearance in a film was as an extra in "Simon and Laura" (1955), but her breakthrough came in 1960 when she was chosen by Laurence Olivier to play the role of model Tina Lapford in "The Entertainer".That same year, she appeared in probably her best known role as Doreen, the would-be girlfriend of rebellious Arthur Seaton (played by Albert Finney), in the influential New Wave film "Saturday Night and Sunday Morning".Director, Lindsay Anderson, described her as “difficult to play with.” Co-star Finney had previously had a small role in "The Entertainer".