Audio problem: Dr. Marvin watches the magnetic interference unit take down an alien spaceship and says, " saucer hit and down in the Potomac". If you look closely his lips do not match what we hear. (00:13:10)
Audio problem: As Becky and Miles go down the steps after leaving his office. Miles keeps mouthing something after we hear the dialogue stop. (00:07:20)
Audio problem: When the crew are getting into the land rover tractor after the captain chews out his crew for letting the alien onboard, you can hear the "steel" door close with a heavy obvious metallic clang. A few seconds later the same door closes with a soft plywood thud, and a few seconds later it closes with no sound at all as if light as a feather. (00:36:00)
Audio problem: When Moses' wife Sephora is out guarding the sheep, Moses is with his son at a tent. Sephora calls him because there is a stranger behind the rocks. When she calls you can hear that the sound is indoor-sound from a set, not outdoors. This continues when Moses calls, the dogs bark and so on.
Audio problem: When Passepartout dances flamenco the tambourine player is out of sync with the music playing. After a while he even stops playing it but the music keeps going on.
Audio problem: Throughout the opening scenes, the innkeeper's lips are out of synch with his dialog due to a less-than-stellar job of overdubbing. The voice substituted for the original actor's belongs to director John Huston. (00:05:00 - 00:13:30)
Audio problem: When Foghorn Leghorn says "Something went wrong!" when he is trying to sort out the camera, his beak does not move.