Trivia: John Cusack's real-life sister, Joan Cusack, is wearing a neck brace on the bus at the beginning of the film.
Trivia: Molly Ringwald's real-life sister, Beth Ringwald, appears in the film as Patty Baker, the girl being carried out of the coat room just before Samantha attempted to talk to Jake.
Trivia: Director John Hughes, wrote this script in two days.
Trivia: This film marked the directorial debut of John Hughes.
Answer: Her birthdate is not mentioned. Regarding the weather and how the locals dress, it depends on where they live. California, for instance, has a fairly warm climate much of the year, so it would not be unusual to see the people there wearing summer-type clothing in early Autumn.
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