Continuity mistake: Towards the end of the film, Mattie hands Jenna the dream house he made for her 13th birthday. There is hardly any "wishing dust" on the roof. However, when she goes outside and sits on her front porch, there is plenty of wishing dust all over the roof of the toy house now.
13 Going On 30 (2004)
Ending / spoiler
Directed by: Gary Winick
Starring: Mark Ruffalo, Jennifer Garner, Judy Greer, Andy Serkis
Jenna decides to go to Matt's wedding and arrives early. Matt tells her he has feelings for her, but can't let down his fiance. Jenna asks to keep the dream house out of his closet, and cries. The wishing dust on the dream house blows over her, and then she is back to being 13. Matt comes in and they kiss. She tells Tom-Tom off. Matt and Jenna end up getting married and moving into a dream house.
More mistakes in 13 Going On 30
Jenna: What happened?
Matt: I don't know. I can pretty much peg it to your 13th birthday party, when you were in the closet playing that game. Spin the Rapist?
Jenna: Seven Minutes in Heaven.
More trivia for 13 Going On 30
Question: In the meeting scene where Richard tells the Poise team that they have to redesign the magazine, Jenna has a red thing on her finger that she keeps chewing and biting. What is it?
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Answer: It's a Fruit Roll-up. She's wrapped it around her finger.
Garlonuss ★