A heartfelt portrait of a disintegrating marriage, a sweeping view of shanty-town life in the Philippines, but Adolfo Alix Jr’s film will surely be remembered as “that film about a woman who gives birth to a fish.” Astonishingly, Alix treats his absurd central conceit with complete seriousness, which doesn’t prevent some humour inevitably manifesting, but the prevailing tone is tragic and deeply sympathetic.