Hi horo35...your pics are truly amazing and I enjoy looking at them very much. In the view of the mountain with the truck you state "...from the movie it looked like they super-imposed it somehow...it looks larger in the movie."
In comparing the movie still to your shot, noticing the narrow width of the curve in the road and the tops of foreground trees, it appears to have been filmed from a greater distance and a higher elevation than yours. Additionally, the movie camera with it's super tele-photo lens compresses the scene, making the mts appear larger and closer.
Again, your shot of the truck driving away with the outhouse visible is just the opposite; the movie still was taken from a closer view. Notice the tops of the trees in your shot and the expanse of sky, compared to the movie still. I caught this immediately because the diagonal tree trunk just to the right of the truck in the movie still is much larger, indicating it was a much tighter crop.
I pick up on a lot of these subtle things, having been a professional photographer. The camera you are using (and I know nothing about it) is probably not the kind you would use to exactly duplicate a movie still, but you are showing the general locale, and that is the important object for this project. Keep up the good work...Doug