A documentary about Andy Goldsworthy, the British artist whose art is made from natural materials found in their native environment. The opening has him patiently forming a spiral out of icicles using the heat of his hands to fuse the pieces together. Ephemeral works of astonishing patience and beauty and an artist who talks about his process with deep zen-like wisdom. This is one of those movies that bring you into their atmosphere, and make you see it through their main character’s eyes. Rivers and Tides adds to that more substance by being breathtaking, fascinating, and inspiring.