Usually when a car doesn’t start the first time, everyone knows that the protagonist will escape in time, and it’s simply a matter of dramatic tension (and yet, how do you achieve dramatic tension when everyone knows what will happen?) The Children of Men scene was realistic enough, and immersed within a story of realistic failures, that I really thought “oh crap, he’s genuinely not getting out of this.”
I later saw No Country for Old Men, and I think that whole movie is about the cliche expectations we have in movies, and stories in general. They take a pretty standard story concept and make everything happen the way it’s not supposed to happen in a movie.
For example (WARNING: spoilers from here on out…), they build up this perfect protagonist, a strong silent type, an honorable man to the point of endangering his own life, a dude whose honest horse sense keeps him a step ahead of the psycho bad guy. He happens upon a satchel of drug money, another movie trope: since it’s drug money it doesn’t violate Hollywood ethics for the good guy to have it. The psycho bad guy is skilled and determined, the one man who can match wits with the dude. Of course this turns the story into a one-on-one battle of good versus evil. A wise old cop is gradually converging on them both, surely to turn the tide right when it is needed. The hero’s wife is safely packed away right at the start, allowing the dude to play cloak-and-dagger without the ethical burden of endangering his family. So far this is every action movie I’ve ever seen.
But look, you take a satchel of some cartel’s drug money, and you’re gonna die. This is exactly what we think cannot happen, even though it’s the obvious outcome. Even if he does die, we expect it will be a meaningful death in a climactic moment, so they kill him randomly in the middle of the story. There is no showdown with the antagonist, the old cop never catches up (of course not, it’s unrealistic for a homicide investigation to proceed that fast) and the wife is murdered because the bad guy is a psycho who is of course not going to honor some cinematic rule of putting the womenfolk out of play. Usually a female character is killed in a cynical expenditure to advance the male protagonist’s story; here, she is killed after the dude’s story is already over, and it advances no story at all.
In the end even the psycho is deconstructed with a pointless accident, something that would never happen to Moriarty or Darth Maul. That last crash is so random, almost like a car falling from the sky, that it’s practically a signal from the producers of their intent to make everything as meaningless as possible.
It’s the most I’ve ever seen a movie criticize the viewer without explicitly breaking the fourth wall.