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Period as film editor

Bored by his work, Lean spent every evening in the cinema, and in 1927, after an aunt had advised him to find a job he enjoyed, he visited Gaumont Studios where his obvious enthusiasm earned him a month's trial without pay. He was taken on as a teaboy, promoted to clapperboy, and soon rose to the position of third assistant director. By 1930 he was working as an editor on newsreels, including those of Gaumont Pictures and Movietone, while his move to feature films began with Freedom of the Seas (1934) and Escape Me Never (1935).

He edited Gabriel Pascal 's film productions of two George Bernard Shaw plays, Pygmalion (1938) and Major Barbara (1941). He edited Powell & Pressburger 's 49th Parallel (1941) and One of Our Aircraft Is Missing (1942). After this last film, Lean began his directing career, after editing more than two dozen features by 1942. As Tony Sloman wrote in 1999, "As the varied likes of David Lean, Robert Wise, Terence Fisher and Dorothy Arzner have proved, the cutting rooms are easily the finest grounding for film direction." David Lean was given honorary membership of the Guild of British Film Editors in 1968.