 For the Ministry of Health, her first film to be written just by her was "Modern Guide to Health" (1946).Their films were also part of the Economic Cooperation Administration's efforts to bolster favourable response to the Marshall Plan.Lothar Wolff, in charge of commissioning these films for the ECA, commissioned Halas and Batchelor to animate "The Shoemaker and the Hatter" (1949) to this end"."