Character mistake: When looking at the newspaper about Chester Copperpot, the caption under his picture reads, "Reclusive scavenger claims, 'I have they key.'" It should read "I have the key."
The Goonies (1985)
1 character mistake
Directed by: Richard Donner
Starring: Josh Brolin, Sean Astin, Joe Pantoliano, Robert Davi, Corey Feldman, Martha Plimpton, Jonathan Ke Quan, Jeff Cohen, John Matuszak
Continuity mistake: On the beach, when Mr. Walsh is tearing up the contract we see the bits of torn paper, but when he tosses them in the air there are many more pieces of torn paper up there.
Andy: I can't tell... If it's an "A sharp" or if it's a "B flat"!
Mikey: Heh, if you hit the wrong note, we'll all "B flat!"
More trivia for The Goonies
Question: How did One Eyed Willie's treasure map, the key and the story get out if Willie had been caved in for all these years?
Answer: According to Mikey and Mr. Walsh, one of his crewmen must have taken the map and fled when One Eyed Willie was murdering his crew. This is substantiated in the novelization.