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Marcus Belby was a Ravenclaw student who was considered for membership in the Slug Club in 1996... See more
- Harry Potter and the Half-Blood Prince (2009) Played by Robert Knox
... aka "HP and the HBP" - International (English title) (informal short title)
... aka "Harry Potter and the Half-Blood Prince: An IMAX 3D Experience" - USA (IMAX version)
... aka "The Half-Blood Prince" - USA (short title)
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