Blair Waldorf Must Pie! - S1-E9
Continuity mistake: Lilly finishes her Thanksgiving meal and takes a glass to her lips. A frame later her arm is down.
Blair Waldorf Must Pie! - S1-E9
Continuity mistake: At the end of the episode, while Dan and his dad are walking, the number of people behind have no continuity between the wide and close-up angles.
