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When Hiccup draws Toothless in the glen for the first time, he smudges the left tail section, indicating his understanding of the problem of why Toothless can't fly. When we next see the drawing, at dinner that night, the left tail section is clear and unsmudged. (And later in the film, it's smudged again.) Even if the filmmakers "fixed" this error while still in theaters, the DVD version I have shows the original errors - smudge/no smudge/smudge. See more...
Trivia
Before Toothless brings Hiccup and Astrid to the dragon's nest, we get several shots of other dragons. Pay attention to one shot of a Monstrous Nightmare; it can be seen holding Gloria, the hippo from Madagascar. (Confirmed on the DVD's commentary.). See more...
How to Train Your Dragon (2010) - 9 corrections
starring America Ferrera, Christopher Mintz-Plasse, Craig Ferguson, Gerard Butler, Jay Baruchel, Jonah Hill (add more)
Genres: Animation, Adventure, Comedy, Drama, Family, Fantasy
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