The Calvin Co. and Centron were located 40 miles apart. They used many of the same actors (the man who plays "Brad" in this film, a Kansas City TV personality named Ken Heady, narrates many Centron shorts) and the employees of both companies were all friends with each other. Art Wolf, who founded Centron, began his movie career at Calvin after World War II. Russ Mosser, who co-founded Centron with Wolf, made an Air Force training film at Calvin during World War II as the subject of his master's thesis. Centron employees Norm Stuewe, Maurice Prather, Bill Sollner, and Jim Pearce all worked at Calvin before joining Centron. The legendary film director Robert Altman began his career directing industrial/educational shorts at the Calvin Co. in the 1950s, and made his first feature film, "The Delinquents," in Kansas City using cast and crew mostly recruited from Calvin. Altman's achievement with "The Delinquents" (which led to his career in Hollywood) inspired Centron director Herk Harvey to make his own feature film "Carnival of Souls" in Lawrence a few years later.