Continuity mistake: When Emily falls off the roof, one shot shows her falling with her back first and her legs together. Then the shot changes to her mom, and back to her, at which point her legs are further apart, she is angled more headfirst, and is still at the same height.
Visible crew/equipment: When Emily falls off the roof her violin falls too, and a crew member is reflected on the violin's surface when it breaks in half.
Factual error: During the baby shower scene (which is on a Sunday) a U.S. Postal Service truck is seen putting mail in mailboxes.
