Who doesn’t love trees? That’s basically the premise behind Patagonia’s new full-length film “Treeline.” Through stories told by skiers, researchers, spiritual seekers—tree nerds, all of them—the relationship between people and trees is explored and celebrated. There is plenty of strapping in and shredding in and around trees, and lots of discussion about how trees impact humanity and vice versa. Japanese birch forests are in here. Massive red cedars in British Columbia, ancient bristlecone pines in Nevada too. The film is 40-plus minutes of beauty and exploration and, well, the feeling of comfort and home great stands of trees evoke in us all.