At Charlie and Muriel's divorce proceedings, Muriel has had a breast augmentation. They are Rosie Perez's real breasts. She had to have them bound down for the first half of the movie, to appear smaller.
In the movie's initial phase, it was originally titled "The $2 Million Tip". Arnold Schwarzenegger was slated to star in the movie, but ultimately chose to star in Last Action Hero (1993) instead.
The subhead of the "Lottery Cop Hits Wife" front page that is released during the divorce trial reads "Muriel Tell's All," which obviously contains an erroneous apostrophe.
At the beginning of the movie, as part of establishing that Charlie is a good guy, he is shown scooping up a blind man who is obliviously crossing a busy street. In reality, blind people know very well how to cross a street relatively safely and would never cross against a light, especially with the sound of vehicles moving all around them. They are visually impaired, not hopelessly stupid. And a long-time police officer would know better than to pick up an able-bodied blind person as a means of guidance, which would be considered very offensive, if not assaultive.
When the movie begins, the coffee shop is called "Ideal". After she buys it, Yvonne changes the name to "Yvonne's". When Charlie comes to the shop to find Yvonne (the first time that they are together after the court verdict), the name of the shop is "Ideal" again. But if you look closely, the Yvonne's sign is still up, just darkened. Obviously with the money awarded to Muriel, Yvonne would had sold the coffee shop back to her original boss, hence it is in the middle of re-doing the sign.