1999’s Fight Club has been consistently rated as one of the best movies ever made in lists since its release. Here are some things you might not know about the cult hit starring Brad Pitt and Edward Norton.The camera shake that happens during the ‘hose scene’ is a result of the camera man laughing.

Brad didn’t want his parents to see the movie, but they insisted. However, they changed their minds after the chemical burn scene.

Chuck Palahniuk, the author of the book said that he came up with the idea after getting beaten up during a camping trip. He found it fascinating that nobody in his work place acknowledged his cuts and bruises, but would rather ask him things such as “How was your weekend?”

When the Narrator hits Tyler in the ear, the punch really did connect. Before the scene was shot, director David Fincher told Edward Norton to really hit him instead of fake hit him. If you watch closely you can see Edward giggling to himself as Brad is in pain.

In preparation for their roles, Brad Pitt and Edward Norton took boxing, Taekwondo, and grappling lessons.

Edward Norton was only paid $2.5 million compared to Brad Pitt’s $17.5 million.

On the DVD, there is a secondary warning that comes after the copyright warning, courtesy of Tyler Durden himself.

The visible breath you see during the cave scene is actually recycled footage from Leo DiCaprio’s breath in The Titanic.

Tyler was originally going to recite a real recipe for home-made explosives- but to be safe, they decided to replace it with a fake recipe.

Helena Bonham Carter made sure that her makeup artist applied all of her makeup with her left hand. She did this because she felt that her character, Marla, is not one to really care to have perfect makeup.

When Tyler is giving his inspirational speech to the Fight Club, he says “We’ve all been raised on television to believe that one day we’d all be millionaires and movie gods and rock stars.” While saying this he looks directly at Jared Leto, who is the front man of the band 30 Seconds to Mars.

Brad and Helena spent a total of 3 days recording ‘orgasmic sounds’ for their sex scenes

Bob’s bitch tits are filled with bird seeds.

Director Fincher stated that there is a Starbucks cup visible in every scene of the movie.

The penguin Narrator sees during the cave scene was intended by the director as a ‘warning’ to the audience as to how surreal the movie is going to become.

Brad and Edward both really learned how to make soap during filming.

Edward Norton agreed to smoke for this movie despite refusing to for his film ‘Rounders’ the year before.

Edward Norton lost about 20 pounds for his role as The Narrator. He did so after having to put on a lot of muscle for his role as a skin head in ‘American History X’ the year before

The movie took 138 days to film.

The line “The first rule of Fight Club is you do not talk about Fight Club” was ranked at #27 of “The 100 Greatest Movie Lines” by Premiere in 2007.

Tyler Durden appears 4 separate times in the film for a single frame at a time before being formally introduced as a character.

Christie Cronenweth, who is the sister of the director of photography for the movie, makes a cameo as the airline check-in attendant.

The car that The Narrator is examining for his job is a 1990 Lincoln Town Car.

Marla tells Narrator that she goes to the support meetings because “It’s cheaper than a movie, and there’s free coffee.” Helena Bonham Carter is also a star in 1995’s ‘Margaret’s Museum’ in which Kate Nelligan says she goes to funerals “because it’s cheaper than bingo, and there’s free food.”

The brown station wagon seen during the first fight outside of the bar is the same one that Michael Douglas hides in in 1997’s ‘The Game’

The typeface used in the movie is called “Fight This”