I haven't seen the entire documentary, but I did see an excerpt (link below); it is an amazing and heartwarming story, regardless of how one feels about animal communicators.
I hope I'm not off topic. I once saw a documentary on TV about an animal communicator that certainly had some surprising results. This fellow had an exotic animal park that was free-range within reason. But he had one black leopard that wouldn't come out of his cage and roared at any one who came near. His name was Diablo. The AC came in and said that, among other things, he didn't like his name because it represented the dark side. The leopard also wanted to know what happened to the two lion cubs that were in the cage next to him when he was sold to the current owner. (No one had told the AC about the lion cubs.) The owner told the AC that they were fine, in another location, and she told the leopard, who said he was much relieved. She also said the leopard wanted to be respected for what he was and his knowledge. After she left, the owner changed his name to something like Destiny and treated him with more respect. The leopard came out of his cage and roamed and lolled around his enclosure.
I can't remember the name of program or the AC, but it was very impressive, and made me think there might be something to this.