Oslo being the first Opera House in the world to let people walk on the roof of the building. The foyer and the roof are also used for concerts as well as the three stages. Most great Norwegian authors have lived in Oslo for some period in their life. For instance, Nobel Prize-winning author Sigrid Undset grew up in Oslo, and described her life there in the autobiographical novel "Elleve år" (1934; translated as "The longest years"; New York 1971). The playwright Henrik Ibsen is probably the most famous Norwegian author. Ibsen wrote plays such as "Hedda Gabler", "Peer Gynt", "A
Peer Gynt sound film was produced in German in 1934. In 1957, Ingmar Bergman produced a five-hour stage version of "Peer Gynt", at Sweden's Malmö City Theatre, with Max von Sydow as Peer Gynt. Bergman produced the play again, 34 years later, in 1991, at Sweden's Royal Dramatic Theatre, this time with Börje Ahlstedt in the title role. Bergman chose not to use Grieg's music, nor the more modern Harald Sæverud composition, but rather traditional Norwegian folk music, and little of that either. In 1993, Christopher Plummer starred in his own concert version of the play, with the Hartford Symphony Orchestra in