Continuity mistake: Duke is wearing an extra shirt, and his hair is longer then it was, despite continuing the scene from the end of season 2.
Continuity mistake: When Stephanie runs in and sees 'Jim' on the floor there is a huge puddle of blood on the floor. When 'Jim' changes back into Amelia the puddle disappears.
Continuity mistake: When Gary is at the end of the table talking about Golf, he's actually seated in front of the table as seen by how he grabs his cup in front of him. In the very next shot, he's no longer sitting in front of the table and is sitting past it.