Other mistake: When Lucas and Zoe are at the restaurant, Zoe steals the staff list from the kitchens. It is an established fact that a waitress named Stephanie works in the restaurant, however when the camera closes on the list, her name is not listed among the other staff members.
Continuity mistake: When Frank and Gene Clancy are at Oren Chase's house, Oren ends the conversation by taking a sip of his ice tea. When he first grabs the glass, he grabs it by the top. In the next shot, he's holding it by the middle. And in the following shot, he's holding it at the top again.