Ivor Goldsmid Samuel Montagu (23 April 1904, in Kensington, London – 5 November 1984, in Watford) was an English filmmaker, screenwriter, producer, film critic, writer, table tennis player, and Communist activist in the 1930s. He helped to develop a lively intellectual film culture in Britain during the interwar years, and was also the founder of the International Table Tennis Federation. Life and career Montagu was born into wealth, as the third son of Gladys (née Goldsmid) and Louis Montagu, 2nd Baron Swaythling, members of a Jewish banking dynasty with a mansion in Kensington. He attended Westminster School and King's College, Cambridge, where he contributed to Granta. He became involved in zoological research. With Sidney Bernstein he established the London Film Society in 1925, the first British film association devoted to showing art films and independent films. Montagu became the first film critic of The Observer and the New Statesman. He did the post-production work on Alfred Hitchcock's The Lodger in 1926 and was hired by Gaumont-British in the 1930s to work as producer on several of Hitchcock's thrillers. His 1928 silent slapstick movie Bluebottles (slang for police) is included in the British Film Institute's History of the Avant-Garde – Britain in the Twenties. The story was by H.G. Wells, and the stars of the film were Charles Laughton and Elsa Lanchester, while the remaining cast were his friends including Norman Haire (also Montagu's doctor), Sergei Nolbandov and Joe Beckett. Montagu joined the Fabian Society in his youth, then the British Socialist Party, and then the Communist Party of Great Britain. This brought him into contact with the Russian film makers who were transforming the language of editing and montage in the 1920s. In 1930, he accompanied his friend Sergei Eisenstein to New York and Hollywood; later in the decade Montagu made compilation films, including Defence of Madrid (1936) and Peace and Plenty (1939) about the Spanish Civil War. He directed the documentary Wings Over Everest (1934) with Geoffrey Barkas. As a political figure and for a time a communist, much of his work at the time was on low budget, independent political films. By World War II, however, he made a film for the Ministry of Information. In 1933, Montagu was a founder member of the Association of Cinematograph and Television Technicians, holding positions in the union until the 1960s. He also held post on the World Council of Peace.