an Entity references as follows:
Earthworm Tractors is a 1936 American film directed by Ray Enright and starring Joe E. Brown and June Travis. The film is also known as A Natural Born Salesman in the United Kingdom. The film is based on characters created by William Hazlett Upson in a series of stories that appeared in The Saturday Evening Post. The series featured Alexander Botts, an eternally optimistic self-proclaimed "natural-born salesman", and the Earthworm Tractor Company, and was inspired in part by Upson's actual work experience with the Caterpillar Tractor Company.