When Lisa is FaceTiming her kids, she tells them she's about to go see a man sing. When the ladies toast with the hurricanes that Dina has spiked with Absinthe, they toast to Friday night. The ladies don't go see Ne-Yo sing until Saturday night.
Around 00:08:01, Lisa is turning back when Dina comes inside. On the next shot, Lisa is turning back again.
Around 01:33:45, Stewart's hands are on the table. On the next shot, his hands are crossed.
Queen Latifah is in the lady's powder room. In the back ground there is a woman in a yellow dress and a reflection in a mirror of a woman in a gray dress. At one point the yellow dressed woman disappears then when she's back the gray dressed one disappears.
Dina says she is immune to gonorrhea because she's already had it. Because Neisseria gonorrhea exhibits antigenic variation, a previous infection does not confer immunity. However, this was intentional to show that Dina is not very bright especially earlier when she said that an infection cannot occur in the rectum.
During the short scene at the beginning of the move showing a truck driving in front of the Superdome, the moving truck appears to be "green screened", as you can see through the truck as it passes.
When Julian drops off Ryan at the hotel after the club fight, the hotel doors open automatically. However, there's a clear sign that says "Doors lock after 10PM. Use Guest key to re-enter." But Ryan doesn't use a guest key and just enters automatically.
Shadow on one of the stage members at one point, when the girls are invited backstage.