2 p.m., Riverdale, Friday.
9:30 p.m., Riverdale, Saturday.
Another Sundance favorite, this documentary
from Joe Berlinger (“Paradise Lost,” “Metallica: Some Kind of Monster”) follows the protracted legal battle between some 30,000 Ecuadorians and Chevron. Some 40 years after the oil giant (then Texaco) began drilling in the Ecuadorian Amazon, the soil and waters of the area still run black, while area tribesmen die of cancer at alarming rates. It's a story of not only one of the biggest legal battles in the world — a $27 billion class action suit — but also one that touches on celebrity activism, global politics, fading indigenous cultures and the environmental movement. Berlinger will be on hand for each screening.