The scene where Edward offers Viv the necklace and shuts the box on her fingers wasn't scripted - Richard Gere (Edward) just did it for a laugh. You can tell, because when he does it, Julia Roberts (Viv) laughs and looks up and around (ie. at the film crew) - in the context of that scene there wasn't anyone there for her to look at.

The scene at the opera was supposed to be the San Francisco Opera house. But due to damages from the 1989 Bay Area earthquake, the opera house was closed. The film crew could not film there and it had to find an alternate location to stand in for it. Submitted by wolfchild

Not an actual mistake, just amusing. The opera that Edward and Vivian go to is an opera about a prostitute who falls in love with her employer.

On the movie poster, Edward's hair is brown. In the movie it's gray.

Julia Roberts has often said that "It Must Have Been Love", which plays when Vivian is leaving Edward and going back to her apartment, is one of her favorite songs.

In the shots of the city in the very beginning, you will notice that some of the neon letters in the hotel where Vivian lives are burned out. The only remaining lighted letters spell "HO," which is "hoe" (short for "whore") a slang term for a prostitute.

Per Gessle (of the rock group Roxette) has said in interviews that he was asked to write a song for the film. However he didn't have the time so he gave the filmmakers an already recorded song, "It Must Have Been Love."

At the beginning of the movie when Edward is driving around trying to find Beverly Hills, the bum he asked for directions from is actually the director of the movie, Garry Marshall.