A Mexican comedy in which a couple of teenagers kill time in a high-rise flat on a slow Sunday afternoon doesn't initially sound enticing. But debutant helmer Fernando Eimbcke makes the most of his enclosed space and eager cast to string together a series of droll vignettes that eventually add up to a satisfying and touching story.
He also manages to slip in references to such social problems as broken families, sexual confusion, the country's unreliable utilities and the stagnant job market with a good deal more subtlety than was managed in the over-rated Y Tu Mamá También.
Diego Cataño and Daniel Miranda are breezily natural as the videogaming home-aloners, but it's Enrique Arreola's pizza-delivering loser who provides both the comic highlights and the moments of genuine pathos.