When Percy and Simon are in the car, Percy buckles his seat belt twice.
When everyone is gathered in the kitchen in the morning, Keisha is taking a big swig from the container with the green juice in it. In the very next shot, the juice container is sitting on the counter.
Right after the "NASCAR scene" in the kitchen, Theresa is shown taking off her jacket. The camera cuts to Simon, then back to Theresa and we see her taking off her jacket again.
When Percy and Simon are en route to the hotel, Percy turns on his radio and the clock reads 7:16. After learning that there were no rooms available at the hotel, Percy and Simon return to the vehicle, once again turning on the radio where the clock still reads 7:16.
The dress worn by Judith Scott's character Marilyn during the "wedding" ceremony is not the dress she told Percy she would be wearing, but the dress that Percy said he liked more. This is either Marilyn changing her mind, or a wardrobe error.
The sign on Reggie's computer at the bank reads FCID. It should read FDIC, for Federal Deposit Insurance Company- a federal organization that protects people's bank accounts.
After Simon and Theresa escape from the basement and are standing on the top of the fort, the moon is backwards (flipped shot).
The bottle containing Keisha's green juice is pressurized. If it's inverted, nothing comes out. To drink from it, you have to keep it upright and squeeze the bottle.
Even though the studio spent $100,000 to digitally remove Ashton Kutcher's red Kabbalah bracelet, it can still be clearly seen when he is drinking coffee in the "breakfast scene."
When Theresa is helping Percy to tie up his tie, crew member's head is visible near the door to the room with treadmill device