Nordemar was born in
Stockholm, Sweden and was brother to film editor and director
Eric Nordemar. Nordemar was active in the film industry from 1932. After completing school education, Nordemar conducted laboratory practice in the film industry from 1931 to 1935. He was employed by the Army, Navy and Air Film (
Armé-, Marin- och Flygfilm) to do work as photographer and editor from 1935 to 1940. Nordemar became chief photographer at the
Sandrew Group in 1940 and was chief photographer at
AB Europa Film from 1945. He was cinematographer, director and producer in
Hollywood from 1945 to 1946. which he became CEO of. Nordemar received the
Academy Award for Best Documentary Feature for
Kon-Tiki (1950) at the
24th Academy Awards in 1951. He was a board member of the Association of Swedish Film Producers (
Föreningen svenska filmproducenter), and others. ==Personal life==