Sean Astin Knew Nothing About 'Lord Of The Rings' Once Upon A Time

'Stranger Things' star Sean Astin thought he was taking a role in 'The Phantom Tollbooth' when he accepted the role of Samwise Gamgee.

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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 CBS All Access, 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.