1. Grizzly Man (2005)
The infamous Werner Herzog documentary, in which former actor and bear enthusiast Timothy Treadwell pets wild grizzlies, is realistic in its depiction of exactly what not to do. "[Treadwell] was not acting appropriately in bear country at all," Ciarniello says. "He was not a researcher or bear manager. He was a member of the public. His actions of treating bears like they're not wild animals is not recommended or appreciated from a management or scientific perspective. Obviously the end result shows what happens with irresponsible behavior — the fact that it took 13 years for that result to happen shows how tolerant bears actually are. They're extremely tolerant of humans and the stupid things that we do in bear country. The true result of his actions in that movie is that a number of bears were shot because of his death. In the end, it was very hedonistic."