Corrected entry: In the nightclub, Cats, after Duckie tells Iona that he's sorry, you see him wiping his lips with a napkin. Then the camera goes to Iona showing her downing her drink and putting her hand on one side of her face, but, when the camera shows her doing this, behind her, you see Duckie reaching for a napkin off of the table.
Pretty in Pink (1986)
1 corrected entry
Directed by: Howard Deutch
Starring: Harry Dean Stanton, Andrew McCarthy, Molly Ringwald, Annie Potts, Jon Cryer
Revealing mistake: When Duckie is showing off on his bike, you can see its not Duckie but his stunt double.
Trivia: Both Michael J. Fox and Anthony Michael Hall turned down the role of Duckie.
Correction: Maybe he just needed another napkin?