* Director David Fincher shot over 1,500 reels of film, more than three times the normal amount

* Brad Pitt's character was originally going to recite a workable recipe for home-made explosives. In the interest of public safety, the filmmakers decided to substitute fictional, dud recipes for the real ones.

* Author Chuck Palahniuk actually found the modified ending in the film to be better than the one he had written in the novel.

* Although he refused to smoke in Rounders (1998) (his character played poker for cigarettes, but did not smoke), Edward Norton did smoke in this film.

* During an exterior shot in an urban residential area, a man in one of the apartments above the working film crew got annoyed with the noise and threw a 40 oz. beer bottle at them. The bottle hit director of photography Jeff Cronenweth who was not seriously injured; the man was arrested shortly afterward.

* The reverse-tracking shot out of the trash can, an elaborate digitally animated sequence, was the very last shot to be added to the film - as almost an afterthought by the director. It required so much processing time that it almost had to be spliced in "wet" - i.e., fresh from the lab - so that the film could be duplicated on schedule.

* In the short scene when Brad Pitt and Edward Norton are drunk and hitting golf balls, they really are drunk, and the golf balls are sailing directly into the side of the catering truck.

* During rehearsals Brad Pitt and Edward Norton found out that they both hated the new Volkswagen Beetle with a passion. In the film they are seen banging a Volkswagen Beetle with baseball bats. However, Pitt is quoted on the DVD commentary as saying he had a change of heart about the new VW Beetle.

* The brown station wagon against which Edward Norton falls in his first fight with Brad Pitt is the same brown station wagon used in The Game (1997), in which Michael Douglas hid while James Rebhorn drove him to CRS headquarters. The car has a CRS sticker on the windshield.

* Three detectives in the film are named Detective Andrew, Detective Kevin, and Detective Walker. Andrew Kevin Walker was the writer of the David Fincher film Se7en (1995) (also starring Brad Pitt), and did some uncredited work on this movie's script.

* In Tyler Durden's house there is a Movieline magazine cover featuring Drew Barrymore, a close friend of Edward Norton.

* While Edward Norton is trying to convince Helena Bonham Carter to leave the city by bus, the crew arranged cinema signs to make references to other films the cast had been in, although only one is visible during the actual scene. Seven Years in Tibet (1997) (starring Brad Pitt) is visible, although the sign letters actually say "Seven Year In Tibe" as if the theatre didn't have the required letters. Other marquees (in the far background, and not visible) reportedly said The People vs. Larry Flynt (1996) (starring Norton) and The Wings of the Dove (1997) (starring Carter).

* The telephone number of the Paper Street Soap Company (as printed on the phone the Narrator uses to call the "1888" office building near the end of the movie) is (288) 555-1534. The Paper Street Soap Company's phone number as listed on Tyler's business card is (288) 555-0153. The narrator's boss' business card shows a phone number of (288) 555-0138. At the time of the film's release, area code 288 was "reserved for future use".

* The "filing cabinet" apartment block that the Narrator lives in is called "Pierson Towers", and the motto is "a place to be somebody" which is the city motto for Wilmington, Delaware.

* There really is a Paper Street in Wilmington, Delaware, but there's no street number 1537 (the numbers on that street don't go that high).

* The typeface used for the titles and logo is named "Fight This".

* Some of fake names used by the narrator in the self-help groups are names of characters in Planet of the Apes (1968), as well as classic roles played by Robert De Niro.

* Director of Photography Jeff Cronenweth's sister, Christie Cronenweth has a cameo in the film as the airline check-in attendant.

* Cameo: [Kevin Scott Mack] Visual effects supervisor is one of the terrified passengers of the plummeting jet.

* Cameo: [Edward Kowalczyk] Member of the band Live plays the waiter who serves the Narrator and Marla with the line, "Sir, anything you want is free of charge, sir."

* Much confusion exists amongst fans about the Narrator's name. Many believe it is Jack due to his use of the phrase "I am Jack's...", but other argue that he only uses the moniker Jack because that was the one he saw in Reader's Digest. Interestingly, in the press packages released for the movie, which came in the form of an Ikea-esque catalogue, the character is referred to as Jack, as he is on the back of the DVD, and in the booklet accompanying the DVD, the Chapter list is referred to as "Jack's Chapter". On the other hand however, in the closed captions for the film, he is referred to as Rupert.