Audio problem: When Stewart leaves the parking lot, there's a cop holding a loudspeaker whose mouth doesn't match the audio at all.
Earthquake (1974)
1 audio problem
Directed by: Mark Robson
Starring: Charlton Heston, George Kennedy, Ava Gardner, Lorne Greene
Revealing mistake: When the airplane is coming in for a landing, we see an exterior shot of the plane shaking violently well before it has touched down. Clearly the "earthquake" effect is achieved by merely shaking the camera.
Trivia: Even though Lorne Greene plays Ava Gardner's father in the movie, he was only seven years older than Gardner.
Question: What happened to Miles? He stops his motorcycle to look back at the flood and - nothing else.
Answer: That has been a question of debate for years. Some say he died, others say he lived. The only real answer I can give is, there were talks of making a sequel. In it, Lou and Maria were living in San Francisco, while Miles and his partner were headlining his motorcycle act in Las Vegas, when another, stronger earthquake hits.