When they are playing toss the beanbag about 25 minutes in, the trajectory of the bag would not have even hit the target let alone made a bulls-eye! (It's still a fun game.)
The movie takes place around the 4th of July in Palm Springs, California. And yet, most of the cast, and especially extras wear long sleeved shirts, light jackets, and pants. It's especially prevalent in indoor scenes. Not possible as California is really hot in that part of the year as you would sweat too much, but movie was shot in the spring when is not hot.