Random Trivia For This Title:
- The role of Lucius Hunt was written for Joaquin Phoenix.
- The color red is very important in this film as is in The Sixth Sense (1999). The special features on the DVD of The Sixth Sense (1999) explain why.
- Director M. Night Shyamalan put the entire cast through a 19th century "boot camp" in order for them to get a good feel for the time period.
- Bryce Dallas Howard and Judy Greer, who played sisters Ivy and Kitty, would later play sisters again in Jurassic World (2015).
- M. Night Shyamalan initially had a different concept for the "those we do not speak of" creatures. They were originally conceived to be monsters similar to the rock drawings featured in the movie trailers: similar to lions walking on their hind feet, complete with shaggy manes. When the creatures were built to full scale and brought on set, Shyamalan felt that the design was completely unbelievable. The creatures were quickly redesigned, most noticeably with the addition of the red cloak.
- The inspiration for the story comes from two unlikely sources: "Wuthering Heights" for the period drama, and King Kong (1933) for the community living in fear of predatory creatures.
- Sigourney Weaver suffered nightmares for two weeks after reading the script.
- Jessica Biel and Kate Hudson were also considered to play Ivy Walker.
- Ashton Kutcher was originally cast as Noah but dropped out due to scheduling conflicts.
- Kirsten Dunst was replaced by Bryce Dallas Howard after dropping out to star in Elizabethtown (2005). Dunst and Howard later appeared together in Spider-Man 3 (2007).
- Aaron Eckhart, Thomas Jane and Hayden Christensen were considered to play Noah.
- Judy Greer (Kitty) also plays a character named Kitty on [Arrested Development]
- Bryce Dallas Howard was cast without an audition.
- According to [?] Steve Boeddeker, the MPAA gave the film an "R" rating due to a single sound effect, which was later removed. It was the sound of the knife stabbing Lucius. Boeddeker has stated that the scene worked even better without it.
- The names of the two leads characters - Lucius (Joaquin Phoenix) and Ivy (Bryce Dallas Howard) carry great meaning to their roles. Lucius is a derivative of the Latin word for light and he is one of the few people who radiates an aura that Ivy can see. Ivy, of course, is a strong plant that grows its own way and tends to climb over walls.