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Trivia: There is an alternate ending where Lewis tries to see his mother's face using the memory scanner.

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Trivia: The paintings in the Robinsons' place are signed by Ruppel, aka Robh Ruppel, the art director of the film.

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Trivia: Director Stephen J. Anderson plays the voice of Bowler Hat Guy, Grandpa Bud and Tallulah.

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Trivia: The logo of the baseball team where Goob plays is a tribute to the book Dinosaur Bob, also written by William Joyce.

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Trivia: The elementary school is named Joyce Williams as a reference to William Joyce, the writer of the book on which the film is based.

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Trivia: A reference to the DeLorean from Back to the Future - on Louis' notebook there is a drawing of a flying car with the tires in horizontal position.

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Trivia: In Louis' room on the wall there is a Walt Disney picture beside Nikola Tesla.

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Trivia: Towards the end while Louis and Wilbur are calling Goob, on the bushes there is the Mickey Mouse logo but head down.

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Plot hole: Lewis fixes the timeline by saying to the hat machine "I'll never invent you", then takes Goob to the future. That present is still dark but it shouldn't be like that.

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