Warner Bros. and Silver Pictures have signed on Evan Daugherty to write the latest draft of Grayskull, the studio's big-screen version of Mattel's He-Man and the Masters of the Universe cartoon and toy line.

According to The Hollywood Reporter, John Stevenson (Kung Fu Panda) is attached to direct the adaptation of the show, which followed a blond warrior named Prince Adam who, when uttering the magic words, "By the power of Grayskull -- I have the power," turned into the heroic He-Man. He and his allies -- Battle Cat, Man-at-Arms and Orko -- defended their planet Eternia from the evil forces of Skeletor, who tried week after week to conquer the fortress Castle Grayskull, which imbued He-Man with his powers.

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Warners sees the big-screen version as a gritty fantasy and reimagines Adam as a soldier who sets off to find his destiny, happening upon the magical world of Eternia. There, Skeletor has raised a technological army and is bent on eradicating magic.

Justin Marks penned the previous draft.

No production date has been set.