David ‘The Rock’ Nelson’s 20th annual Halloween movie

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It wouldn't be Halloween at WGN without a visit from B-movie film director David "The Rock" Nelson.

He's the man behind such classics as "Giant Fly 2" and "The Devil Ant."

David "The Rock" Nelson joined WGN Morning News to premiere his latest film "Demon Monster 2."

Watch his latest movie in the video player above