Continuity mistake: Mr. MacLeish is in his plane, and before taking off he presses Play on the cassette player. He is holding it in a different way (fingers on opposite sides of the tape lid) between shots. (00:03:40)
Continuity mistake: In the finale, the wet stain on Mr. MacLeish's body changes between the close-up and the wider angle. (00:47:15)
Continuity mistake: When a subservient TC grabs Magnum's suitcase, the torn-up gas bills move from his left hand to his right between shots. (00:22:15)
Other mistake: The clock in the millionaire's limo has all hands (including the second hand) perfectly still. (00:02:00)