Factual error: When Lawrence is leaving his phone number on Janet's answering machine, he give her the area code, 402, which is for Omaha, Nebraska instead of Pittsburgh, PA.

Factual error: In the scene where Chuck is stapling flyers to the telephone poles, the tree behind Vanessa has changed colors for Fall, but still has a lot of orange leaves. The scene takes place after Christmas. In Pittsburgh, PA, the leaves are long gone by December.