The House of Sand, directed by Andrucha Waddington and written by Elena Soarez, won this year's Alfred P. Sloan Prize. The award, which goes to an outstanding feature film focusing on science or technology, comes with a pretty nice cash reward: $20,000. Waddington's second feature doesn't take place on a spaceship or a computerized wasteland; the epic story about three generations of Brazilian women is set on a remote sand dune. "A poetic meditation on the physics of time and the biology of human variation," pronounced the jury panel. The award will be presented in Park City tonight. Along with a whole host of others.