Adorable Trailer for Disney's New Doc 'Lion' Exec Produced by Favreau"The journey of a king." National Geographic & Disney have revealed an official trailer for a new nature doc called Lion, about lions and an adorable lion cub. This is their follow-up animal doc connected to the live-action The Lion King movies. Executive produced by Disney Legend and The Lion King live-action director Jon Favreau & BBC Studios Natural History Unit's creative director Mike Gunton. Executive produced by Disney Legend and The Lion King live-action director Jon Favreau & BBC Studios Natural History Unit's creative director Mike Gunton ("Planet Earth II", "Dynasties").