Other mistake: When Ralph's Renault R4 goes head on into the shallow and rocky river it emerges without a dent. (01:18:45)
Romancing the Stone (1984)
1 other mistake
Directed by: Robert Zemeckis
Starring: Danny DeVito, Michael Douglas, Kathleen Turner, Zack Norman
Revealing mistake: When Michael Douglas attempts to swing on a vine over a deep abyss, the rock that he runs into on the other side moves like a marshmallow, indicating that it's a fake rock. (00:39:10)
Joan Wilder: You're a mondo dismo.
Jack Colton: I'm... what am I? I'm what?
Joan Wilder: You're a man who takes money from stranded women.
Trivia: The studio was so sure the film would be a flop, they preemptively fired director Robert Zemekis from his next project, "Cocoon," and instead gave the job to Ron Howard. Ironically, the film ended up being one of the top-ten grossing films of the year.
Question: What is it likely that the stone (an emerald, I gather) was worth in 1984 US dollars?
Answer: Any emerald over 1 carat in that beautiful cut and condition would probably go for over 250 million. Real emeralds over 5 carats are rare and the price goes up exponentially after 2 or 3 carats. 305,000 per carat after 5. So yeah that one was probably like 800 or more carats.