Sandberg began in 1914 as a cinematographer and director for
Nordisk Film. After directing a series of low-budget comedies, he directed his most acclaimed work: 1917's
Klovnen (
The Clown) starring
Valdemar Psilander. The film's premiere two months after Psilander's sudden death created a media sensation which launched Sandberg's career. Between 1918 and 1927, Sandberg was the film company's leading director and succeeded
August Blom as Nordisk's artistic director. During that period, his reputation was cemented by adaptations of
Charles Dickens novels:
Our Mutual Friend (1921),
Great Expectations (1922),
David Copperfield (1922) and
Little Dorrit (1924). He produced 58 films of which he wrote 19. In 1926, Sandberg directed a remake of
Kloven starring
Gösta Ekman (senior) and
Karina Bell. Following the switch to sound films in the 1930s, Sandberg restricted his film work to documentaries. ==Personal life==