One of the most powerful documentaries to play at this year's Sundance Film Festival, Roger Ross Williams' "God Loves Uganda," finally opens in select markets October 11, and Indiewire has the exclusive first trailer for the film.

READ MORE: Roger Ross Williams Exposes the Evangelical Mission in 'God Loves Uganda'

The film tracks America's Christian Right evangelical campaign to infuse East African culture with their own values. Williams follows American and Ugandan religious leaders fighting sexual immorality and missionaries trying to convince Ugandans to follow biblical law. Infurarting, engrossing and insightful, the film is a must-see.

"God Loves Uganda" opens in New York, LA and other major markets on October 11. Watch the trailer below: