Y Tu Mamá También

Two teenage best friends, inseparable since childhood, are spending one last hedonistic summer before university when they meet Luisa — a beautiful, unhappily married woman a decade their senior, attached to one of their relatives — and talk her into joining them on a road trip to a legendary hidden beach. What starts as a raunchy teenage fantasy of sex and competitive one-upmanship slowly opens into something far richer: a sun-baked, handheld travelogue of Mexico itself, in which the trio's self-absorption keeps colliding with the country they're driving through — its poverty, its politics, its people's quietly upended lives. The three central performances are the engine. The two boys radiate comic, hormone-addled vitality while remaining believably callow, and the older woman carries an undercurrent of private melancholy that keeps the film's lightness from ever feeling cheap.

Cuarón and his brother use the road-movie form to fuse low comedy with a somber, essayistic undertow. An omniscient narrator periodically pulls away from the protagonists to tell us the fates of the people and places they pass, anchoring the frolic in Mexico's class divisions and its political crossroads. It's a daring structural gamble, and it's the film's most contested element: some critics find the narration heavy-handed and self-important, and complain that the sexual and political threads never quite fuse into one thing. The protagonists are also deliberately hard to warm to — boastful, thoughtless, crudely competitive with each other — which some viewers read as a fatal lack of likeability rather than a point.

The genuine disagreements are mostly about whether the tonal gear-shifts land, not whether the filmmaking delivers. Critics broadly agree this is far more than its raunchy surface advertises — a wistful, bittersweet meditation on the fleetingness of youth, friendship, class, and mortality, with an ending that lingers long after the credits. Two decades on, it's repeatedly cited among the best films of the 21st century and functions as a touchstone of early-2000s world cinema; its frankness about sex was itself a small cause célèbre, released unrated in the US precisely because an NC-17 seemed unavoidable.