Continuity mistake: At Joey's party, when Alex and Michael are talking about Seth's girlfriend, the food on Alex's plate keeps changing places in between shots.(00:10:00)
Michael: You're a hot girl. Hot girls get stuff for free. Joey: Yeah, it's true. It's in the Constitution. Alex: Look, I know what I am. I'm not a hot girl. I'm cute. Michael: You're a hot girl that doesn't know she's hot. Joey was telling me about those. Alex: No, I know hot girls. My sister is one of them. Michael: "The even hotter sister" – one of four ways a girl doesn't realise she’s hot. Along with "went to a girls' school", "used to be fat", and "is blind." Joey: You have learned well, young Michael.
Trivia: Originally, Ashley Scott was cast as Alex, Joey's neighbour, but audiences didn't see much connection between them, so they re-cast her as Andrea Anders.