This slip-up occured in the newer Freaky Friday with Lindsy Lohan. In the begining her mom took away her door for bad grades. After they switched the mom (in Anna's body)said she was going to change out of her pajamas, and Anna (in the moms body) said have fun changing without a door. But earlier they went to check if the brother and grandpa and changed and they didn't. If you look behind them while they're on the stairs you will notice Anna's door is back on the hinges! (you know because of the poster thing she has)