Career
Børsum had her debut in the movie "Jakten" in 1959, and worked at Oslo Nye Teater from 1979. She retired from regular performance in 2005, with her performance in the play The House of Bernarda Alba by Federico García Lorca. Since then she has continued to perform, however, and has toured the country with her monologue about her mother, "Minister forestilling om mor".
Børsum"s mother, Lise Børsum, was involved in the Norwegian resistance movement in World World War II and spent time in Ravensbrück concentration camp.