Character mistake: When Curtin shoots Dobbs, the two shots are close together in time. When Curtin explains it he says that he was shot and falls. Then Dobbs shoots him again. This takes time but the shots were fired very quickly.
The Treasure of the Sierra Madre (1948)
1 character mistake
Directed by: John Huston
Starring: Humphrey Bogart, Walter Huston, Bruce Bennett, Tim Holt
Revealing mistake: When Howard and Curtin chase Dobbs, they pass a dead donkey which is obviously breathing, and the rope used to tie its legs together is visible too.
Gold Hat: We are the Federales... You know... The mounted police.
Dobbs: If you're the police, where are your badges?
Gold Hat: Badges?.. We ain't got no badges. We don't need no badges. I don't have to show you any stinking badges.
Trivia: Director John Huston has a cameo as the white-suited man who gets increasingly irritated when Humphrey Bogart repeatedly begs him for money.