
1) "Can you stake a fellow American to a meal?"
Three times, Bogart's Fred C. Dobbs hits up the same unfortunate fellow (Huston, in a memorable cameo) for money to get himself something to eat. However, despite the fact that the benefactor agrees to give Dobbs not only three donations, but a fourth to simply leave him alone, Bogart's character never manages to buy that promised meal. Either he's hitting a bar or luxuriating for a nice shave and haircut. In the first ten minutes, the scene not only entertains, but shows Dobbs' hunger, his greed, and his basic immorality, all of which will lead him toward madness as he hunts for gold flakes later in the picture.