Billy Boyd manages to stump Stephen Colbert with 'Lord of the Rings' trivia

How good, nay, exceptional is your Lord of the Rings trivia knowledge?

J. R. R. Tolkien fan and scholar Stephen Colbert's is historically excellent, with The Late Show host even taking his fandom to the next-level on a visit to New Zealand a few years back.

So OG trilogy stars Dominic Monaghan and Billy Boyd, members of the Fellowship and proud owners of their own new podcast, decided to take Colbert to task with some trivia about Tolkien's beloved books, with a precious prize promised.

Who is Shelob's mother and how did she die? Where exactly is the pivotal entmoot within Fangorn Forest? One of these extremely niche questions escapes Colbert's deep knowledge.

"Ladies and gentlemen, stumped by Pippin!" announces Boyd.

Don't worry, Colbert gets his revenge — with a question from director Peter Jackson himself.