Overview
- His family said he died at his home in Toronto after living with ALS.
- Gunn produced a run of Disney live‑action hits including The Haunted Mansion, Sky High, Bedtime Stories and Race to Witch Mountain, and later Cruella and the 2025 sequel Freakier Friday.
- He worked on Freakier Friday alongside his children, Isabelle and Connor, who joined the production in camera and props departments.
- Gunn founded the Disney Writers Program in 2001, with alumni such as David Berenbaum, Matt Lopez and David DiGilio crediting the initiative for launching their careers.
- He is survived by his wife Jane Bellamy Gunn, his children Isabelle and Connor, his mother Anne and his siblings, as industry figures including Nina Jacobson, Blaise Hemingway, Erin Westerman and Shawn Ryan shared remembrances.