I'm not sure why this happened, but as I assembled this year's best-of list, I kept seeing matched sets: Two terrific desert movies, two swoon-inducing romances, two single-minded crusades by men who think they're already dead, and even a pair of riveting mortgage crisis flicks (and what are the chances of that?). The doubleness is a good organizing principle, since my 10-best list nearly always turns into a 20-best — so here goes: