Power Of Grayskull Documentary movie - Trailer - featuring Dolph Lundgren, Frank Langella, Anthony De Longis, Robert McCallum - Plot synopsis: Power of Grayskull recounts the unusual origin, explosive success, and the ultimate meaning behind HE-MAN AND THE MASTERS OF THE UNIVERSE, detailing the rise and fall of a childhood toy - and hero - whose appeal is much more than simple nostalgia.