During World War II, she was a prisoner in Auschwitz. After the war, she made movie Ostatni etap (The Last Stage) in 1947. The film was partly shot on location at Auschwitz concentration camp. The film is based on director Wanda Jakubowska's personal experiences as a prisoner at Auschwitz. She claimed that what helped her to survive Auschwitz was constantly thinking about the documentation of her experiences.