Walking on Water captures celebrated installation artist Christo as he constructs a pedestrian walkway (covered with yellow fabric) on top of Italy's Lake Iseo. The piece was first conceived decades ago by the artist and his longtime partner Jeanne-Claude, and the film shows just how complex its construction was. "It's a very, very demanding project — it's like a huge garden, and you have to keep everything in good order," he tells his team at one point in the movie. It screens today at 1:45 p.m. at the Cleveland Museum of Art. Tickets cost $10, or $7 for CMA members. (Niesel)