Designed by Louis de Soissons and built by Dawnays in 16 weeks the Welwyn Studios opened in 1928 at Broadwater Road, Welwyn Garden City, Herts, for British Instructional Films (BIF). Producer & director Bruce Woolfe was Managing Director and the Studios specialised in geographical & historical documentary and nature films including the 'Secrets of Nature' series before Woolfe began to focus on feature films including Anthony Asquith's A Cottage on Dartmoor (1929). This was one of the first 'sound films' although some dialogue and music were added later. The 1927 Cinematograph Films Act required British cinemas to show a quota of British films and inadvertently led to many household names making early cinematic contributions at Welwyn, such as Ann Todd, Ralph Richardson, Margaret Lockwood, Bela Lugosi and Alfred Hitchcock. A larger sound stage was added to Welwyn Studios in 1930. The Studios were absorbed by John Maxwell's British International Pictures (BIP) in 1931. It was predominately used to accommodate overflow productions from Elstree and hired out by companies such as Gaumont-British who made WWI drama I Was A Spy in 1933. A new production company, Welwyn Studios Ltd., was set up in 1935. Maxwell switched main production to Welwyn Studios in 1939 since, unlike Elstree, it was not requisitioned in the war. Alfred Hitchcock, among others, returned to Welwyn Studios to make propaganda films to aid the war effort. Later taken over by Maxwell's Associated British Picture Corporation (ABPC) Welwyn Studios was used by various production companies during the 1940s. Brighton Rock (1947), I Live in Grosvenor Square (1945) and Piccadilly Incident (1946) were made there. With dated facilities commercial pressures forced ABPC to sell Welwyn Studios to tobacco company Ardath in late 1950, ending the three-stage studios that had produced over 70 films, contributed to the war effort, introduced audiences to many cinematic stars and had been the home of many classic films, still enjoyed today. The Trust is very grateful to pupils and staff from Onslow St Audrey's School's Heritage Society who undertook the challenge of finding this information as part of the 'Where Do You Think We Worked?' project.