"A Time For Burning" is a cinema verite film (no interaction between camera and subjects) that was nominated for Best Documentary Feature in 1968. It follows the pastor of a Lutheran Church in Omaha, Nebraska as he tries to help bridge the racial divide in the community by implementing an exchange program with a nearby African American Lutheran church. His efforts meet resistance from those who think this will divide the congregation.
This movie combines issues of social justice, race, religion, and morality, presented in an honest, candid way. It is a great snapshot of a time in our history and features regular people being confronted by the inevitability of integration after the passage of civil rights legislation in the mid 60's. Great stuff. If you have Netflix, I'd consider adding this one.