“John Halas and Joy Batchelor worked on Music Man in 1938, before they formed the Halas & Batchelor studio. Halas directed the film; although Joy Batchelor is not credited, she is identified as an animator on the film by Vivien Halas and Paul Wells’ book Halas & Batchelor Cartoons”(source: 100 Greatest Cartoons film by Vivien Halas and Paul Wells’ book ‘Halas & Batchelor Cartoons’)
The General Post Office (GPO) establishes the GPO Film Unit to produce public information films. The documentary film maker and head of the GPO Film Unit John Grierson employed animation pioneers such as Norman McLaren and Len Lye. Animation was seen to be an effective public information communication tool.