This movie was fantastic. 9/10
It's like the people who watched this film were expecting something and when they got something different, they weren't open to it and missed the real meat of the movie: The psychology of the situations, dialogue, characters, cinematogrophy, and attention to detail. This movie is very intelligent and interesting. I was particularly impressed with the characters and acting and the little things.
Spoilers
The attention to detail is fantastic through the whole film. In the beginning of the movie, I thought, "eh *beep* they will drive the merc through the SUV instead of around it. That's so hollywood." But they didn't, and in most any other movie they would plow through, so that the "stupid" viewer is entertained. And then the oil pan gets knocked off by a rock, blowing the engine block. When do you see that?
Another example is when the body moves when Danny tries to get the key to syphon gas. You don't know if it's a zombie movie, or what. The same thing when the dog is eating the corpse-you think it's a zombie.
Even the scene when Brian kills the Christian woman for gas makes sense. Why didn't he just threaten them? Because they were backing up and he didn't want to take the chance, and he was pissed off by Danny not succeeding in convincing them. Brian has anger issues any way, plus he's always drinking.
I was impressed with how proactive firearms use was. Duh, almost everyone would want a gun, yet in some movies the viewer is left cringing as to why there are no guns in use. (American Horror story season 1) Kate and Danny grab knives right away. I can't stand when people are turned into victims when weapons are available, and I can't stand the victim mentality that some people promote.
The ending was unsatisfying and dismal. It could have been satisfying and dismal. There should have been another segment with Kate and Danny.