Barbara Kwiatkowska-Lass was a Polish stage and screen actress. Although she received ballet and dance education, she eventually took up an acting career. After her debut role in Tadeusz Chmielewski's comedy "Ewa chce spać" (1957) she gained wider popularity in Poland. In 1959 she left Poland for the West and soon starred in a few major films like "La millième fenêtre" ,with Jean-Louis Trintignant, and "Che gioia vivere", starring Alain Delon. She married film director Roman Polanski in 1959; they divorced in 1962.