Continuity mistake: In the scene where Cameron Diaz and her husband are talking to the doctor in a flashback, her hair repeatedly goes from behind her shoulders to in front. it is especially obvious when at one point she turns towards her husband and her hair completely changes position.
Continuity mistake: At the hospital, after Kate has finished vomiting as a result of her chemo, she is cuddling against Taylor. During their conversation about a dance at the hospital, Kate's hair alternates between being in front of her left ear to being behind it.
Continuity mistake: In the scene towards the end of the film when Sara is quizzing Anna on the stand, Sara's arms alternate between folded in front of her in the shots from the front to hands on hips from the back.