What was Vivien Leigh’s first film?

'Things Are Looking Up' is a 1935 British musical comedy film directed by Albert de Courville, produced by Michael Balcon for Gaumont British and starring Cicely Courtneidge, Max Miller and William Gargan. It was made at Islington Studios by British Gaumont, an affiliate of Gainsborough Pictures. The film's sets were designed by Alex Vetchinsky. Courtneidge plays a dual role as the sisters Bertha and Cicely Fytte. Bertha is a dour schoolteacher, while the bubbly Cicely runs a nearby showground. When Bertha surprisingly elopes, Cicely takes her place at the school to prevent her from getting the sack. Although it was an uncredited role it was the film debut for Vivien Leigh playing the part of a schoolgirl.