Dominic Monaghan, Billy Boyd, and special guest Peter Jackson try to find a "Lord of the Rings" trivia question that will stump our host. And to up the stakes, they have a special LOTR prize for Stephen if he can get it right. #LOTR #DominicMonaghan #BillyBoyd

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Watch The Late Show with Stephen Colbert weeknights at 11:35 PM ET/10:35 PM CT. Only on CBS.

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The Late Show with Stephen Colbert is the premier late night talk show on CBS, airing at 11:35pm EST, streaming online via Paramount+, and delivered to the International Space Station on a USB drive taped to a weather balloon. Every night, viewers can expect: Comedy, humor, funny moments, witty interviews, celebrities, famous people, movie stars, bits, humorous celebrities doing bits, funny celebs, big group photos of every star from Hollywood, even the reclusive ones, plus also jokes.