Continuity mistake: The gatekeeper lets Marisa and David in; the position of his clipboard changes between shots, and so does the position of the other hand, quite more noticeably so since it's off the button column, then on it suddenly again. (01:17:50)
Continuity mistake: At the beginning of the party, Mr. Slade has a bunch of steak on the grill, but just two of them when he turns towards the mayor with an angry face. (01:14:30)
Continuity mistake: When Marisa Kendall talks with her obviously arteriosclerotic mother on the phone, she holds the receiver in different ways between shots. (00:59:45)
Continuity mistake: When the kid tries to pry the phone off his drunk mother's hands before leaving to challenge it to a knife fight, the hand position on the cord changes between shots. (00:46:00)
Continuity mistake: David's boss is driving him after the visit to the herpetologist. In the middle of the conversation the passenger's window goes from all the way up to halfway open and back to closed again. (00:30:50)