Continuity mistake: After Emily burns her home it's night time, then she follows the police cars and it seems like evening, and when she comes out from the water the sun shines in the background.
Continuity mistake: When Renée Zellweger drives up in front of her house the first time in the movie, as she shuts her car off, her window is down. When she gets out, the window is back up.
Continuity mistake: While Emily is talking with Diego at the madhouse, the amount of macaroni on Diego's plate changes when it falls to the floor.