sentences:  The writers, Ivan Goff and Ben Roberts, had worked on it for 13 months.Film rights were sold almost immediately, to Universal, for a reported $100,000 against a sliding percentage of the gross to reach a maximum of 15% at $2.5 million.A clause was added that if a film was not released by June 30, 1950, the rights would revert to the authors and they would keep the $100,000.