Audrey Hepburn's salary for the film was $750,000 (roughly equivalent to $7.3 million as of 2022), making her the highest paid actress per film at the time.
Holly Golightly is supposed to be just 19 years old when she meets with Paul. Audrey Hepburn was 31 years old when playing Holly.
Although not visible on camera, hundreds of onlookers watched Audrey 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.
Henry Mancini wrote "Moon River" specifically for Audrey Hepburn. He later said that while many versions of the song have been done, he feels that Audrey's was the best.
Holly Golightly wears the same dresses all the way through the movie, simply changing the accessories to give each outfit a different look. Her black shift dress features through the movie at least four times. This signifies that while she wasn't well-off, she was savvy with being stylish, using the little she had to great effect.
Blake Edwards: [cat] The slapstick business with Cat presages Edwards' smash-hit franchise of La pantera rosa (1963) which was jam packed with feline imagery.