Re: The trailer in the story vs. the trailer in the movie
Not to belabor the point, just wanted to add that when I was reading the story before bed last night, I rediscovered another detail. When Annie talks about the wind blowing around the trailer when Ennis wakes up that morning, she describes the sides/walls of the trailer as curved. That detail is probably what influenced me to visualize a small, ratty old travel-trailer, compared to the "house trailer" we see in the film.