Served as the inspiration for I Dream of Jeannie (1965), also starring Barbara Eden as Jeannie the genie, arguably her most iconic acting role.
Ventimore's closing to Fakrash, "What we obtain too easily, we esteem too lightly and it has little value," is a paraphrase of Thomas Paine, who said, "What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated." This comes from "The (American) Crisis", a pamphlet that Ventimore might have read as a schoolboy studying the American revolution. It is more famous for the phrase, "These are the times that try men's souls."
The scene where Fakrash flies into the passenger's seat of Harold's car was inspired by the famous "Let Hertz Put You in the Driver's Seat" TV commercials of the early 1960s, which used similar special effects to transport a couple into the front seat of a Hertz rental car.
The car driven by Harold Ventimore is a 1958 Chevrolet Bel Air Impala convertible.
Parlay Baer, who plays Mr. Wackerbath, had just left The Andy Griffith Show the year before, where he played Mayor Stoner.