 Kneitel wrote several Superman episodes with Isadore (Izzy) Sparber, and directed one short, "The Mechanical Monsters" (1941).In January 1942, the Fleischer brothers were forced to resign from the studio they had created; they had borrowed money from Paramount between 1938 and 1941 to finance their expanded Miami facilities and two feature films.After the failure of their second feature, "Mister Bug Goes to Town", the studio called in their loans, effectively foreclosing the studio.