Now that advances in CGI have afforded even the most cost-conscious filmmakers the opportunity to expand their horizons and hide the seams, there's something heroic about those who choose not only to work within their limitations, but to handicap themselves even further. The ferociously high-concept Buried--in which a man (Ryan Reynolds) wakes up in a wooden casket underground, with only a half-charged Iraqi-language cell phone and a flickering Zippo for companions--feels like something Hitchcock would have pulled off on a dare during a long weekend, which is nearly the highest praise I can give. Claustrophobes and those prone to ADD probably need not apply, but within its self-determinedly narrow boundaries, it's just about unimpeachable. by Andrew Wright