Other mistake: This film was retitled for video, but whoever was responsible made an error. It was retitled Attack Of The The Eye Creatures with 'The' written twice in the title.
Other mistake: Dean Jones and Connie Stevens are riding in a gondola of a skyway ride at a seaside amusement park. The gondola they are in is obviously on a studio soundstage. It is much larger than the gondolas shown in the rear-screen projection. In addition, there are no riders in any of the other gondolas and the gears and cables of the ride make absolutely no sound.
Other mistake: In the opening credits, the composer of the movie score is credited as "Elizabeth Lutyens", with a Z. Her proper name was Elisabeth, with an S. (00:00:50)