Here's another example of the POM synergy: Annie Proulx brings in a wire clothes hanger during the fight at the lake scene to talk about how a hanger can be used to unlock a car door, then bent back into its original shape. Director Ang Lee shows the hanger in the closet holding the shirts, and has Ennis press them into his face when he embraces the shirts. It reappears at the very end, holding the shirts on a nail. The hook of the hanger is like a question mark, leaving the end of the movie ambiguous.