Continuity mistake: Toward the end of the movie, Jules is yelling for Kimmy in a public restroom. When she walks in, her curls in the back of her hair are loose. Another shot shows her curls tight, and later they are back loose again. This actually happens repeatedly throughout the movie. With Jules's long, curly hair, it's obvious when it changes.
My Best Friend's Wedding (1997)
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Directed by: P.J. Hogan
Starring: Julia Roberts, Cameron Diaz, Dermot Mulroney, Rupert Everett, Rachel Griffiths, M. Emmet Walsh, Philip Bosco
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More mistakes in My Best Friend's Wedding
Julianne Potter: Now remember, it is the duty of the best man to dance with the maid of honor.
Michael O'Neill: Dance? You can't dance. When did you learn how to dance?
Julianne Potter: I've got moves you've never seen.
Question: When Michael is having a fitting done for his suit, it appears that the tailor is making a pattern with the materials on Michael's body where his coat would be. With the wedding 2 days away, isn't it a little late in the game to be making a custom suit?