கேள்வி: சாரா எருல்கர் - பகுதி படத்தொகுப்பு என்பது என்ன?
பதில்: *''Aircraft Today and Tomorrow'' (1946; SFU) *''Flight for Tomorrow'' (1947; SFU) *''Lord Siva Danced'' (1947; SFU) *''New Detergents'' (1949; SFU) *''Night Hops'' (1950; SFU) *''The History of the Helicopter'' (1951; SFU) *''District Nurse'' (1952; Foreign Office & Commonwealth Relations Office) *''Birthright'' (1958; Family Planning Association) *''Spat System'' (1960; GKN sponsor) *''Woman's Work'' (1961; Samaritan Films) *''Mary Lewis - Student Nurse'' (1961; Ministry of Health-sponsored COI film) *''Anaesthesia with Methohexitone'' (1961) *''Depression - Its Diagnosis in General Practice'' (1963) *''The Smoking Machine'' (1963) *''Physics and Chemistry of Water'' (1965) *''Korean Spring'' (1966: Caltex) *''Something Nice to Eat'' (1967; Gas Council) *''The Hunch'' (1967) *''Land of the Red Dragon'' (1968; British Movietone) *''Picture to Post'' (1969; GPO) *''Ready for the Road'' (1970; COI) *''The Air My Enemy'' (1971; Gas Council) *''Never Go With Strangers'' (1971; COI) *''The Living City'' (1977, co-directed with de Normanville) *Male and Female (1980) *''Teenage Talk-In'' (1977–82) *''A Disease Called Leprosy'' (1985)