In The Day Mars Invaded Earth (1963) Sci-Fi classic movie, the Martians are not the invaders, they're the ones protecting themselves from us after a US space probe lands on their planet.
A crusty, eccentric priest recruits three reluctant convicts to help him rescue a children's leper colony from a Pacific island menaced by a smoldering volcano.
Wealthy rancher G.W. McLintock uses his power to maintain peace between farmers, ranchers, land-grabbers, Indians, and corrupt officials in the territory.