Revealing: Lizzie has black nail polish and the same size of nails throughout the entire movie. Supposedly, Lizzie and Isabella are different people. But, when Isabella comes back, you can see she has the same color nail polish and the same size of nails as Lizzie. I don't think it's just a coincidence.
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Mistakes
At the designers, when the dog was taking away the skirt, in one shot the skirt was short, but in the next it was long again. See more...
Trivia
In the scene at the designer's, the first dress Lizzie is wearing has a hat with styrofoam pellets hanging off of it. If you look closely, you'll see the hat is actually made out of the tabloid with her and Paolo on it that Gordo shows her later back at the hotel. See more...
The Lizzie McGuire Movie mistakes
Audio problem: When Lizzie is performing at the end of the movie at the awards show, at the part where we see her from the back facing the blue light, her voice sounds like it's changing. It seems like it's someone much older singing, or the synthesizer went wrong. It just obviously isn't Lizzie's voice anymore.
Continuity: In the scene where Lizzie's parents are seeing her off for her trip to Rome, she first walks away from her family after exchanging hugs and the legs of her pants are rolled up. She then turns around and walks back for a second hug with her mother and when she turns around and walks away from the family a second time, her pants are no longer rolled up.
The Lizzie McGuire Movie trivia
When Ms. Ungermyer takes Ethen's headphones off he is listening to "Girl in the Band" by Haley Duff, Hilary Duff's sister.
In the scene at the designer's, the first dress Lizzie is wearing has a hat with styrofoam pellets hanging off of it. If you look closely, you'll see the hat is actually made out of the tabloid with her and Paolo on it that Gordo shows her later back at the hotel.