Audio problem: When Jennifer gives David a ride home near the beginning of the movie, you hear David's dog barking. In the next shot, we see the dog is running down the front path and it barks a couple more times. Look closely at its mouth, it's not barking.
Audio problem: When Jennifer gives David a ride home near the beginning of the film, as David gets on her bike, she looks round and tells him to "Hop on" without moving her lips. (00:18:20)
Audio problem: In the scene where the plane carrying Matthew Broderick is landing in Oregon, the plane shown landing is propeller driven. The sound effect is a jet engine aircraft.
Answer: Writer Walter Parkes explained they had John Wood read the dialog backwards to give it a flat tone (i.e. Game a play to like you would). Then after rearranging it they would synthesize and process it to give it an electronic quality.
Bishop73