Trivia: In Curt Siodmak's original script for the film, whether or not Lawrence Talbot really underwent a physical transformation to a werewolf or if the transformation simply occurred in his mind was left ambiguous. The Wolf Man was never to appear onscreen.
Trivia: This is Rachel McAdams' third time travel film (she also stars in The Time Traveler's Wife and Midnight in Paris), but her character hasn't time traveled in any of the films, it's always someone else.
Trivia: During the feast in which Christian finds a pubic hair inside of his food, look closely at the drinks on the table. While the camera never calls direct attention to this, if you look closely, Christian's drink is very slightly darker than everyone else's. Earlier in the film, the camera briefly passes over a mural that depicts a woman collecting menstrual blood in a cup. (Along with the image of a woman cutting off pubic hairs, like the one Christian found in his food.) It seems Christian's drink has been laced with something he didn't expect.
Trivia: When David Banner is dreaming about his trial, the jury foreperson is played by The Incredible Hulk creator, Stan Lee.
Trivia: Disney wanted people to despise Scar, the film's villain, so, during Scar's big song 'Be prepared', they made references to Adolf Hitler. When Scar's army begins to march, they are goose-stepping like Nazi soldiers and have their snouts raised like a Nazi salute (their snouts appear longer here than in any other part of the movie, and pointed to their right). Scar is on a large ledge, which resembles a balcony, much like that used by Hitler - on the side, the rock has a pattern resembling a giant Swastika. And finally, on the ground where the army marches, lines appear. These lines were on the streets of Germany, where the Nazis paraded.
Trivia: The actress playing Connie has the same surname as her character - Moreau.
Trivia: Though not revealed in the movie, the Prince's name is Adam. At the New Orleans Disneyworld, the Princess hotel rooms have portraits of each Disney prince. The 'Beauty & the Beast' prince is shown in human form and his name stated underneath as 'Prince Adam.' In addition, the officially licensed Disney Fisherprice 'Little People' sets include 'Belle and Prince Adam.'
Trivia: The wolf in the film was played by two different wolves. Neither knew how to howl, so a third wolf had to be brought in for the howling scene.
Trivia: Throughout the entire movie, no one ever says the bass player's name. Even in the credits, he is listed as T.B. Player and The Bass Player.
Trivia: Julian was played by twins Cole and Dylan. You can tell which twin is in a scene as Cole has a mole on his left cheek which is paticularly visible in close up.
Trivia: The Sator Square dates back to Pompeii and is a square of 5 Latin words making a palindrome: Sator, Arepo, Tenet, Opera, and Rotas. Whichever orientation the square is in the words line up in both directions. Each word features in the film - Kenneth Branagh's character is named Sator, the forger mentioned near the start is Arepo, the title is of course Tenet, the opening sequence takes place in an Opera, and the Ukranian special forces who arrive in that sequence have badges on their arms with "Rotas" on them.
Trivia: George reads a paperback while reclining on his prison bunk. The book is "Hells Angels" by Hunter S. Thompson, the author whom Depp previously portrayed in the movie Fear and Loathing in Las Vegas (1998).
Trivia: If you listen very carefully to the part where Al MIchaels says, "Do you believe in miracles? YES...", you'll notice that it's from the original broadcast of the game in 1980. All other play-by-play was re-done by Michaels as the movie was produced. The reason they used the original 1980 broadcast for just that specific moment is that Michaels had a difficult time recreating the emotion and excitement he felt when shouting it as it really happened.
Trivia: In the Gattaca world, people like Vincent who fake their genetic profile are known as borrowed ladders. This is a reference to the double helix, or ladder shape, of DNA.