British screenwriter, buiographer, and novelist. Lambert was educated at Cheltenham and Oxford, where he became friends with filmmakers Karel Reisz and Lindsay Anderson. At Oxford he also founded, together with Reisz and Anderson, the short-lived but influential journal, Sequence, which he co-edited with Anderson. From 1949 to 1955 he edited the periodical Sight and Sound, with Anderson as a regular contributor. At about the same time Lambert was deeply involved in Britain's Free Cinema movement which called for more social realism in contemporary movies. He also wrote film criticism for The Sunday Times and The Guardian. In 1957 he moved to Hollywood, California, in order to work there as a screenwriter and personal assistant to director Nicholas Ray, whose movie Bitter Victory (1957) he co-wrote. He claimed he became Ray's lover for a period of time.