Kim Cattrall occasionally came to the set wearing a wedding dress for the benefit of the paparazzi photographers, to trick the public into thinking that her character Samantha Jones would get married in this film.
Two comedians from New Zealand, Tim Batt and Guy Montgomery, are watching this film each week for 52 weeks (as of February 2015) and discussing it for their podcast, "The Worst Idea of All Time." They previously did this with the Adam Sandler movie "Grown Ups 2."
In May 2015, Sarah Jessica Parker posted a teasing photo of her with a shopping bag, in order to promote her collaboration with Bloomingdales. However, the photo went viral, when it proved so ambiguous, that several fans believed the photo teased a potential third 'Sex and the City' movie. Several online outlets reported the announcement and an unaware and puzzled Cynthia Nixon, co-star of the show, was asked about it during a live interview. In the end, Warner Bros. Studios had to make an official statement that there was no plans for a 'Sex and the City 3'.
It was erroneously reported that due to a product placement deal with the studio Carrie Bradshaw would own a Hewlett-Packard laptop instead of her ubiquitous Macintosh laptop. Bradshaw's laptop is the same PowerBook G4 seen in the previous film.
The writers obviously went out of their way to avoid giving Brady's last name when a teacher at a science fair announces his name simply as "Brady." In the original TV series, Miranda named him after Steve's surname - before there was any chance of them getting married - and his name was later mentioned in the series as Brady Hobbes. Typically (in the US), especially when the parents are married, the child takes the father's last name, which in this case, would have made him Brady Brady.
The trivia item below may give away important plot points.
The blue Manolo Blahnik pumps that Carrie leaves in the penthouse, and that John uses as the "diamond to seal the deal," can be seen over her left shoulder when she's in her closet packing for Abu Dhabi.