Here is the trailer for Last Call at the Oasis, the highly anticipated new documentary from Academy Award-winning director Jessica Yu. Inspired by Alex Prud'homme's book The Ripple Effect: The Fate of Fresh Water in the 21st Century, the film is a thorough examination ofthe global water crisis, with a focus on industrial and agricultural pollution in America and the drying of the Southwest. Last Call opens tonight (Friday) in New York in Los Angeles before rolling out nationwide. Looks like a must watch.