Just before Skeeter is offered the Ferrari horse there is a poster on the tree advertising "Hybrid Mules" for sale. As well as being a reference to Jill's choice of car, a mule is a horse/donkey hybrid.
Jonathan Pryce (Marty Bronson) and Richard Griffiths ( Barry Nottingham) were a part of a movie franchise, though they never shared any screen time. Jonathon Pryce played Governor Swan in the first 3 Pirate of the Caribbean movies and Richard Griffiths had the small part of King George in the 4th Pirates of the Caribbean movie.
The trailer shows a scene where Skeeter reveals to Mickey, (the room service guy), that the bedtime story he told his niece and nephew the night before came true but this was not actually shown in the theatrical release of the movie.
Jackie Sandler, Sadie Sandler: The woman and the little girl in the Medieval story who pick up Adam Sandler's hat after his horse vanishes, are his wife Jackie and their daughter Sadie, making her film debut.
The trivia item below may give away important plot points.
When they are doing the Broadway presentation for the manager of the new hotel, Kenneth says, "A pool for the sharks. And a pool for the jets." This is a reference to West Side Story, a musical based on Shakespeare's Romeo and Juliet.