Character mistake: When Tracy is about to announce that the wedding is off, she turns to Dexter for help, and he says "Two years ago..." Tracy starts the announcement "Three years ago..."
The Philadelphia Story (1940)
1 character mistake - chronological order
Directed by: George Cukor
Starring: James Stewart, Cary Grant, Katharine Hepburn, Ruth Hussey
Continuity mistake: In the scene where a drunk Connor visits CK Dexter Haven at his home after Uncle Willie's party, Dexter's pyjamas and dressing gown change from shot to shot. First his pyjama top is done up, then it is open, then done up, then open again.
C. K. Dexter Haven: The moon is also a goddess, chaste and virginal.
Tracy Lord: Stop using those foul words.
Trivia: Hepburn wanted Clarke Gable and Spencer Tracy for the male roles, but the studio gave her Cary Grant and Jimmy Stewart instead. (She did get Spencer eventually when requested for Woman of the Year).