According to Kramer, he and Rose intentionally structured the film to debunk ethnic stereotypes. The young doctor, a typical role for the young Sidney Poitier, was created idealistically perfect, so that the only possible objections to his marrying Joanna would be his race, or the fact she had only known him for 10 days; the character has thus graduated from a top school, begun innovative medical initiatives in Africa, refused to have premarital sex with his fiancée despite her willingness, and leaves money in an open container on his future father-in-law's desk in payment for a long-distance phone call he has made. Nothing is made of the 14-year difference in their ages. Kramer and Rose completed the film script in five weeks.