Despite his success with those films, Sjöberg was foremost a stage director, perhaps the greatest at the Royal Dramatic Theatre (alongside first Olof Molander and later Ingmar Bergman). He was a First Director of Sweden's Royal Dramatic Theatre between 1930 and 1980; he staged there many remarkable and historic productions. Sjöberg was also a pioneer director of drama for early Swedish TV (his 1955 TV production of Hamlet is a national milestone). At the 3rd Guldbagge Awards Sjöberg won the award for Best Director for the film Ön.[2]
Sjöberg died in a car accident on his way to rehearsal at the Royal Dramatic Theatre in Stockholm.
Torment (Hets) (1944) From a synopsis by Ingmar Bergman, who served as assistant director. Nominated for the Golden Lion at the Venice Film Festival in 1947. Shared the Grand Prix du Festival International du Film at the 1946 Cannes Film Festival[3]