They founded the production companies Romulus Films and Remus Films, which were active during the 1950's and 1960's. Sir John Woolf and James Woolf were the sons of the British producer C.M. Woolf (1879 - 1942). Jimmy groomed the actor Laurence Harvey for stardom.
James Woolf died on 29 May 1966, a suicide according to the Internet Movie Database.