Trivia: When Dan Aykroyd speaks to the Russian agents, the Russian phrase he says "Menshe ty znayesh, luchshe" translates to "The less you know, the better."
Trivia: Another notable cameo appearance is made by the special effects legend Ray Harryhausen in the role of Dr. Marston.
Trivia: Bob Hope has a cameo which lasts about 20 seconds. During the nearly endless doctor scene, Hope takes a golf swing through the tent. This movie is an homage to the series of seven "Road to" movies which starred Bob Hope and Bing Crosby. This cameo is Hope's last for the big screen.