Dominic MonaghanDominic Monaghan, wore a fat suit made of foam. He drank three liters of water a day so he would not dehydrate.
Ian HolmIan Holm was the voice of Frodo Baggins in the 1981 BBC Radio adaptation of The Lord of The Rings.
Although Bilbo Baggins's opening scenes are in Hobbiton, Ian HolmIan Holm never actually worked on the location. His scenes were all done against blue screen.
When the trailer was released on Internet on 7 April 2001, it was downloaded 1.6 million times in the first 24 hours.
Sean AstinSean Astin gained 30 pounds for his role as Samwise.
John Rhys-DaviesJohn Rhys-Davies is the tallest of the actors who play members of the Fellowship. He is 6' 3".
Christopher LeeChristopher Lee reads The Lord of the Rings once a year and is the only member of the cast and crew ever to have met J.R.R. TolkienJ.R.R. Tolkien.
Gandalf's painful encounter with a ceiling beam in Bilbo's hobbit-hole was not in the script - Ian McKellenIan McKellen banged his forehead against the beam accidentally, not on purpose. But Peter JacksonPeter Jackson thought McKellen did a great job "acting through" the mistake, and so kept it in.
When Frodo is leafing through Bilbo's Book in Rivendell, a page with dwarven runes is shown. The runes translate thus: "Stand by the grey stone when the thrush knocks, and the setting sun with the last light of Durin's Day will shine upon the keyhole." (the secret to the back door to the Lonely Mountain)
Galadriel's home at Lothlorien was the largest miniature set built for the trilogy.