PG | 1h 41m | Documentary | November 2, 2021- United States| Based on German conservationist and author Peter Wohlleben’s 2015 bestselling book of the same title, the slow-paced but info-packed “The Hidden Life of Trees” very quickly makes one thing abundantly clear: J.R.R. Tolkien got it right. Trees are basically Ents. Wohlleben himself is the…