Trivia: Although they play mother and daughter, Laura Linney is only 10 years older than Amy Adams.
Trivia: Although Tommy Lee Jones is third billed, he does not appear until 71 minutes into the movie.
Trivia: When Lockhart is in the sensory deprivation tank, the nurse that does a poor job of keeping an eye on him is reading "Der Zauberberg" by Thomas Mann, which obviously has at that point a common premise with the movie (the main character goes to a sanatorium in the Alps just as a visitor but ends up as an inmate). The novel was inspired by Mann's visit to his wife at a Swiss sanatorium which happened in 1912, same year as the picture fully unveiled in the finale.
Trivia: When a human warrior is pulled from his horse and thrown to the ground by an orc during the first battle between the orcs and the humans, he yells a Wilhelm scream.
Trivia: When two food products run for cover during the end of Firewater's and the Non-Perishables "Great Beyond" belief story, you can hear the Wilhelm scream.
Trivia: Jason Mewes was originally set to play the "Brahtzies", but had to drop out due to finding the makeup required for the roles far too claustrophobic.
Trivia: On Paterson's bed stand, there is a photo of a younger Paterson during his military service. This is an actual photo of Adam Driver from his time in the United States Marine Corps. (00:01:40)