Revealing mistake: In the scene where Ellie is testing her Thanksgiving turkey by giving Morgan a piece, when she throws it in the trash he says 'no no no Sarah.. what are you doing!', which is the actor's name (Sarah Lancaster), not her character's. Maybe edited in some versions.
Revealing mistake: When Sarah and the Triad chick are fighting, Sarah is thrown through the window of a late model Dodge. When she is thrown through the window, it breaks into large shards, indicating it is not made of the safety glass which is used in all car windows. But then, while they are fighting in the car, all the glass inside is small pieces of safety glass, not the shards.