It was produced by Ray Goossens at Belvision Studios, with American involvement from Norm Prescott (Filmation) and Fred Ladd.

Instead, Pinocchio's sidekick was Nurtle, an alien Twertle (voiced by Arnold Stang), sent by his government to investigate an unusual increase of radiation on Mars.

Together they do battle against Astro, a marauding intergalactic whale who was seeking revenge after being abducted by a mysterious race of Martians.

In 1965 the film was adapted into a comic strip by Willy Lateste, which was published in Tintin.

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