Continuity mistake: In her apartment Jenna walks out into the hallway, looks at herself in the mirror and stumbles backwards over the shelf behind her. There is a short stack of magazines on that shelf, yet when Jenna looks at herself in the mirror the stack of magazines is at least three times as high in the reflection. (00:14:10)

13 Going On 30 (2004)
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Directed by: Gary Winick
Starring: Mark Ruffalo, Jennifer Garner, Judy Greer, Andy Serkis
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Jenna: Wait, listen to me. I'm 13.
Lucy: Jenna, if you're gonna start lying about your age, I'd go with 27.
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Question: After it's all over and the 13 year old Jenna kisses the 13 year old Matt, Jenna said something like, "I gotta show you something." What was it?
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Answer: The rest of their lives...Jenna changed the future where she was 30 to a different one where her and Matt live happily ever after.
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