On the flight back from Miami, Timmy downs his entire glass of champagne and sets the empty glass on the arm rest. When the camera angle changes the glass is no longer empty.
On the flight home, the woman seated behind Timmy changes to a different person.
During the "running of the skanks" conversation, Russell observes that it is fall. Later, Timmy states that "just last month" Russell flew to Las Vegas for the adult movie awards. The adult movie awards in Las Vegas are in early January.
Drinks can't be served until after takeoff.