Mysteries of the Deep (film) Documentary featurette; released on December 16, 1959. Production associate Ben Sharpsteen. In this Oscar-nominated short, a submerged reef is the home of many strange creatures of the sea. We see mating, birth, and development of the young into adults, with the laws of nature being fulfilled as the battle for survival goes continually on. One of the shorts in which Walt Disney’s nephew Roy E. Disney wrote the narration, photographed by, among others, H. Pederson. 24 min.