Terry Pratchett's The Colour of Magic two-part television adaptation starred an American actor best known for playing Mikey Walsh in what 1985 film?
Sean Astin:  He is known for his film roles as Samwise Gamgee in "The Lord of the Rings" trilogy (2001–2003), Mikey Walsh in "The Goonies" (1985), and the title character of "Rudy" (1993).
i don't know