Continuity mistake: After Lizzie tells she just had sex for the first time she climbs up in her bed and has a pillow behind her back. Not only has she switched pillow in the next shot, but the pillow behind her back change position between the shots. (00:17:45)
Continuity mistake: When Lizzie is at Dr. Sterling's she is sitting in a chair with a rug hanging over it. If you look at the top right corner of the rug you can see it's folded. Suddenly the corner is unfolded. (00:37:30)
Continuity mistake: At Lizzie's birthday party when her grandparents are visiting, she grabs her mother's cigarette box on top of a closet and opens it. When it cuts she opens it again. (00:43:00)
Continuity mistake: In the scene where Lizzie and her mother are arguing and Lizzie bursts out in tears she says, "I hurt the people who love me, but when he calls.", it cuts and she hides her face in her hands. When it cuts she has her hands on top of her head. (00:47:25)
Continuity mistake: When Lizzie, her mom and her grandparents have finished eating dinner (after her mother's mugging), Lizzie is cleaning the table and removes the two bowls in front of her mother and grandmother. Her grandmother comments that the mugging would not have happened had it not been for Lizzie, in which Lizzie's mother tells her to quiet down while the camera angle changes. In this shot you see Lizzie coming back to the table after overhearing the comment and picking up the same two bowls.