The Best Chrismukkah Ever - S1-E13
Continuity mistake: When Marissa goes to see the psychiatrist, she sits down and puts her jacket on the arm of the chair. When the shot changes, her jacket is on the other side of her.

Starring: Peter Gallagher, Adam Brody, Mischa Barton, Kelly Rowan, Ben McKenzie
The Best Chrismukkah Ever - S1-E13
Continuity mistake: When Marissa goes to see the psychiatrist, she sits down and puts her jacket on the arm of the chair. When the shot changes, her jacket is on the other side of her.

Continuity mistake: When Ryan is lighting Marissa's cigarette with his, at the start of the shot it's full, then the shot goes to Ryan and it's still full. But then the shot goes to Marissa and if you look at Ryan's cigarette you can see it is almost all gone. Then the shot goes to Ryan and the cigarette is full again. (00:09:00)
Kirsten: Is everything okay?
Seth: Hmm? Yeah, it's fine.
Theresa: I'm pregnant.
Seth: Well, except for that.
Trivia: Adam Brody originally auditioned for the part of Ryan Atwood.
Question: When Ryan goes to Marissa and Alex's apartment (after Alex told him to stay away from Marissa), he says, "If you have to work this hard, it isn't working." What does he mean?
Answer: He means that if Alex has to go so far as to forbid Ryan from seeing Marissa in order to maintain her relationship with her, their relationship obviously isn't working.