The Mosquito Coast (1986)

Allie Fox (Harrison Ford) is a man disenchanted with the establishment, and determined to leave it behind. He moves his family to Honduras, along the Mosquito Coast, determined to live a life outside of the confines of the established social and governmental order. Allie is a sharp man, an inventor, and quickly establishes a community that lives in harmony with the local people of the region, and builds an ice factory that is beneficial to all. Allie is determined to fight any form of 'establishment' though, and comes into conflict with Christian missionaries and others. He is determined, though, to remain outside, even telling his family that America is gone because of a nuclear holocaust. His determination may be good, or it may end up destroying his family and his relationships with his wife Mother Fox (Helen Mirren) and his son Charlie (River Phoenix).