'Heli' begins as a touch portrait of the life of a Mexican family; but turns into something darker when they fall into the path of a murderous gang of drug dealers. The film's third section charts what happens afterwards, and is arguably the least satisfactory portion of the movie: it's not that the film is unconvincing, but it's unclear what is added beyond what one might have expected. The ambiguous mood of the ending is arguably a sign of failure rather than success: of a film uncertain of its own point. What is good, on the other hand, is the warm and naturalistic acting, and a believable portrait of everyday dreams and their ending.