The car that Valdez picks up before the wild ride with McCloud is a Jaguar D-Type, a popular race car and LeMans contender in the Fifties but obsolete by the time of the film's release in 1964.
Last American studio film of Arlene Dahl.
According to early publicity announced prior to JFK assassination, Polly Bergen's wardrobe for the role as first female president of the US was to have been designed by Oleg Cassini, favorite couturier of then-First Lady Jackie Kennedy. For whatever reason, costumes were ultimately designed by Howard Shoup, who received an Oscar nomination for his work.
Is found to be the first American film depicting a female U.S. President.
The British film distributors were so uncertain of the film that they put it out on general release without a London West End showing.