Don't be fooled by the blurb here, which describes 'Earth' as "poignant, funny and charming". Whoever wrote that probably only watched the first ten minutes.
Deepa Mehta paces the narrative carefully and the initial happy notes are gradually drowned out by the terrible mob violence that marked the Partition of India in 1947. Britain's ham-fisted attempts to draw straight lines on the map in creating the state of Pakistan led to vicious battles between Hindus, Sikhs and Muslims. In 'Earth', Mehta shows how a Parsi family try to maintain neutrality, but are nonetheless swept up in the communal blood-letting.
This is the middle film of Mehta's trilogy using the elements as titles. It is less nuanced than 'Fire' and 'Water', largely because of the wide scale of its political setting and ambition. It is a powerful lament for the destruction of a previously harmonious community.