When Sam and Richard camp under the stars, they lay blankets flat on the ground. In next scene, they are clearly resting their heads on pillows under the blankets.
After Richard lands his plane, he doesn't park it properly on the airstrip apron; the plane's left wingtip juts out into the runway.
At approximately 7 minutes, character Richard (J.R.) is riding in truck with Willie. Noting the disparity in the size of two characters sitting side by side throughout the scene, it's clear this is a green screen shot, where actor Ryan Peavey (Richard) is inserted into filmed scene.
When Richard is being driven in the Bighorn Car Service pickup truck they show the Montana license plate. The first digits on Montana plates denote the county. One is for Silverbow county, 2 is Cascade county, etc. The first digits on the pickup license plate are 59, but, since there are only 56 counties in Montana, it would be impossible to have a license plate that starts with the number 59..
Sam and Richard visit the fair, but they don't pay for the bean-bag toss game or the cotton candy.
At 1:11:00 they show both of them having cushion / pillow as head rest under the spread when sleeping on ground under the night sky. Where did these suddenly appear from when they had only laid down a floor spread?