Blu-ray Region B. Join Sir David Attenborough on a journey through the ever-changing habitats of our world. This is our Home. This is our Future. This is Planet Earth 3.. Actors: David Attenborough, Tom Greenhalgh, Fredi Devas. Director: Abigail Lees, Sarah Whalley. Languages: English. Subtitles: . Running Time: 456 minutes approx. Discs: 3