(K)nox: The Rob Knox Story
2021| 0h 46m| IMDb 5.5
In 2008, 18-year-old Rob Knox was stabbed to death just days after filming his breakthrough role as Marcus Belby in Harry Potter and the Half-Blood Prince. This emotional true crime documentary investigates the reasons behind his murder and features interviews with family members, friends and the Harry Potter cast including Jim Broadbent, Ray Winstone, Tom Felton, David Yates and Blake Harrison.
Director: Aaron Truss
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Streaming info last checked: 20 Jan 2026