When Mrs. Reese uses Brandon's phone to take nude pictures of herself, she puts the phone under her robe to take the shot, which would result in extreme close-ups. When Anthony looks at the pictures on the phone they are clearly shot from a distance of at least a few feet.
When Anthony and Brandon are riding in the car talking about missing their cell phones and wallets, Anthony's seat belt is repeatedly on/off between shots.
At the dorm party, Alex states that she lives on the other end of campus from the dorm. But at the end of the film, she states she is at the dorm picking up the last of her belongings to move elsewhere.
Every time the guys look through the peep hole, the view is unobstructed. But when their neighbor notices it for the first time, he has to lift up part of the poster which had been blocking it.
When Anthony watches the footage of Brandon and Holly having sex in the dorm, the audio from the tape is the same 5-second clip repeating over and over.