Continuity mistake: When Joey accesses her email address book to send an email to Dawson, she inadvertently hits the address above his, sending her email to the entire Worthington campus. Dawson's email address in Joey's address book is DawsonLeery@worthington.edu. Dawson does not go to Worthington and would not have a campus email account.
Other mistake: In the scene where Pacey and his Boss are out to lunch, his boss states that he just bought a car, so they head to a dealership. When they are walking in, his boss goes to a car that's kept in the showroom and dusts it off with a cloth as though that's the one he bought, since it is unlikely that he'd clean off a car that wasn't his. A car that someone just bought would not be kept in a showroom; it would be on the lot and ready to go, especially if the paperwork was already completed, as the boss stated when he said it was already signed and paid for.