Character mistake: Dexter says "Aconagua" is the highest point in South America. The name of the highest mountain in the Andes is "Aconcagua".
The Computer Wore Tennis Shoes (1969)
1 character mistake - chronological order
Directed by: Robert Butler
Starring: Kurt Russell, Cesar Romero, Joe Flynn, William Schallert
Other mistake: A group of students poses as painters so they can investigate shady doings at A.J. Arno's home. They had made a work order which included their dormitory's phone number. When Arno calls the number, he asks, "Is this 247-8824?" A student says "Yes" but the number on the phone dial is "471249624."
Trivia: When Walt Disney died of lung cancer in the mid-1960s, his last written words were "Kurt Russel," alluding to a Disney actor who was only a young teenager at the time. Kurt Russel went on to become a prominent actor in film in his adult years.