Making movies is a very different experience in a lot of ways. It's difficult when you're used to owning the copyright and having a landlord's possessory rights - I rent my plays to the companies that do them and, if I'm upset, I can pull the play. But the only two directors I've worked with are pretty great.
Humans pull together in an odd way when they're in the wilderness. It's astonishing how few people litter and how much they help one another. Indeed, the smartphone app to navigate the Pacific Crest Trail, Halfmile, is a labor of love by hikers who make it available as a free download.