John Frankenheimer was hired to shoot the film with Marilyn Monroe. When the producers suddenly moved to Switzerland and Audrey Hepburn replaced Monroe, she said she had never heard of Frankenheimer and insisted that he be paid off and another director be hired.
Tiffany's opened its doors on a Sunday for the first time since the 19th century so that filming could take place inside the store.
Author Truman Capote envisioned Marilyn Monroe in the part of Holly. Monroe was originally cast as Holly Golightly but her drama coach, Lee Strasberg, told her that playing a call-girl was not good for her image.
Audrey Hepburn hated Danish pastries, making filming the famous opening scene a bit of a chore for her.
Although not visible on camera, hundreds of onlookers watched Hepburn's window-shopping scene at the start of the film. This made her nervous and she kept making mistakes. It wasn't until a crew member nearly got electrocuted behind the camera that she pulled herself together and finished the scene.
Hepburn said the scene where she throws Cat into the rainy street was the most distasteful thing she ever had to do on film.
Holly's pad is much larger than the real-life brownstone used for exteriors.
Elements of Holly's character in the original novel, such as her flirtation with bisexuality, were omitted to make the part more suitable for Audrey Hepburn.
The movie was shot only three months after the birth of Hepburn's first son, Sean H. Ferrer.
George Peppard was a student of Method acting, a style Hepburn found difficult to work with. Nonetheless, the two actors remained close friends until her death.
Holly's couch is really an old-fashioned bathtub split in half. In some scenes, you can still see the gold handles at one end and the legs on the bottom.
Audrey felt that she was miscast as Holly Golightly in this film, although it was one of her most popular roles.
The song "Moon River" was written especially for Audrey Hepburn, since she had no training as a singer. The vocals were written to be sung in only one octave.
At a post-production meeting following a screening of the film, a studio executive, in reference to "Moon River," said, "Well, I think the first thing we can do is get rid of that stupid song." Audrey Hepburn stood up at the table and said, "Over my dead body!" The song stayed in the picture.
Steve McQueen was offered the co-starring role. However, he was still under contract for the show "Wanted: Dead or Alive" (1958), which prevented him from appearing. The role eventually went to George Peppard.
Contrary to popular belief, the movie follows Capote's original novel quite closely. The character of Mag Wildwood, the Amazon-like model who crashes Holly's party in the film, is a major character in the novel. Capote describes her as having a stutter. In the film, Mag does indeed stutter though this isn't explained. During the shoplifting sequence, Holly briefly dons a Huckleberry Hound mask; a direct reference to a line in her song, "Moon River." Although Audrey's performance of "Moon River" is unsurpassed, it would not be officially released until after her death. Holly's "bad date" prior to her first visit to Paul's apartment is only heard behind a door. The man who provides this voice is uncredited, but he sounds a lot like Mel Blanc, who at the time was working with film co-star Alan Reed on "The Flintstones" (1960).
Audrey Hepburn's salary for the film was $750,000, making her the second highest paid actress (behind Elizabeth Taylor) per film at the time.
'Kim Novak' told Larry King that she was offered the part of Holly Golightly before Hepburn.
The story which Paul received the $50 check for is called Roman Caper, a reference to Audrey Hepburn's first starring role, Roman Holiday (1953).
About nine cats were used throughout the film as the role of Cat.
In the book rack in the train station behind Peppard and Hepburn can be seen in soft focus copies of a paperback version of Peter Gunn which was the TV show on which Mancini and Blake Edwards worked.
The movie's poster was as #18 of "The 25 Best Movie Posters Ever" by Premiere.
The famous black dress worn by Audrey Hepburn in the opening scenes of this movie was sold for $807,000 on December 4, 2006 at Christie's Auction House in London, making it the second most expensive piece of movie memorabilia ever sold. The first is the Best Picture Oscar for 'Gone with the Wind'.
Although it's never explained why Holly is wearing a bed sheet at her cocktail party, an earlier scene (cut before release) established she'd been taking a bath and had to improvise a gown on the spur of moment. The cut scene was featured in Life magazine pictorial shortly before film was released.
In the famous "it should take you exactly 4 seconds to cross from here to that door. I give you two" scene, it takes Paul exactly 4 seconds from when he starts walking to when he reaches the door.
According to the screenplay, 2-E's real name is Emily Eustace, hence the nickname "2-E."
'Henri Manchini' wrote "Moon River" specifically for Audrey Hepburn. He later said that while many version of the song have been done, he feels that Audrey's was the best.