Revealing mistake: When Julian uses a credit card to open the sliding glass door at his parents' home it's obvious that there is no latch or lock where he inserted the card when the door opens.
Less Than Zero (1987)
1 revealing mistake
Directed by: Marek Kanievska
Starring: Robert Downey Jr., James Spader, Andrew McCarthy, Jami Gertz
Continuity mistake: When Julian sarcastically sings 'Silent Night,' he jumps up in the car and knocks the mirror on the dash upwards out of place. In the next shot it shows it back to normal and then it goes out of place again.