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ST. LOUIS – The story of a dog rescued from a hoarder and nursed back to health in 2010 is heading to the silver screen.

Marshall the Miracle Dog has inspired a children's book and now a movie. His owner, Cynthia Willingbrock joined First @ 4 Friday to talk about some inspiration about anti-bullying and the humane treatment of animals.

Click the video player above to watch the story.

There's an open casting call Sunday from 9 a.m. until 11:30 a.m. at Clayton High School. All ages are welcome to attend, and the film will be casting for extras and supporting roles. For more information, visit the Marshall the Miracle Dog Facebook page or the movie's website.

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