Sonic the Hedgehog 2 (2022)

Trivia: Sonic makes a brief joke about the feud between the actors Vin Diesel and Dwayne Johnson, who both appeared in the "Fast and Furious" movie franchise. This film is from the same producers as that franchise.

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Trivia: Sonic not being able to swim is a callback to the original video-games, where Sonic can't swim. When he's underwater, he can only move like normal (albeit slower), and will drown after a brief period. In order to avoid drowning, he has to either surface or make contact with large air-bubbles that he can breathe in. This is also referenced in the movie when Sonic sucks in a giant air-bubble in the temple ruins while he's underwater to avoid drowning.

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Trivia: The biplane from the wedding that Tails steals is a reference to the original video-games, in which Tails sometimes flies a similar biplane.

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Trivia: While Knuckles is chasing Sonic and Tails on the road, he punches a green truck with Splash Hills label on it, that's a reference to the Splash Hill zone in Sonic 4 the video game.

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Trivia: Tom's cellphone ringtone is the theme to the level "Green Hill Zone" from the original 1991 "Sonic the Hedgehog" video game. The theme was also featured briefly in the first film in both an orchestral and piano rendition.

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Trivia: The film's working title was "Emerald Hill." This is a direct reference to the first zone in the Sonic the Hedgehog 2 video game.

Trivia: Idris Elba has stated that he pitched the idea of giving Knuckles a high, squeaky voice to humorously contrast with his strength and fierce persona. Thankfully, Elba and the director decided that this idea wouldn't work, and would probably just annoy fans, so they instead settled on a more tough, regal voice.

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Trivia: Tails is voiced by Colleen O'Shaughnessey. This is actually notable, as she had previously voiced the character in several video-games and the animated series "Sonic Boom!" She's the only voice actor from the video-games to return to voice her character in the movie series. The rest of the characters are voiced by celebrities.

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Trivia: There is an extra scene during the credits that introduces the character Shadow the Hedgehog, a popular character from the games.

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Trivia: Agent Stone works at a coffee shop called "Mean Bean." This is a reference to the "Sonic" spin-off video game "Dr. Robotnik's Mean Bean Machine."

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Trivia: At one point, Knuckles hits Sonic and Sonic drops and loses his bag of rings. This is a subtle reference to the video-games. In the video-games, Sonic collects rings which act as a sort-of surrogate health-meter. When he gets hit, he loses all his rings, and has to recollect them. (If he gets hit again while having no rings, he dies).

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Trivia: Some of Robotnik's new drones have insect-like features. This is taken from the games, which featured robotic animals and insects as common enemies. In particular, the hornet-like drones are based on the "Buzz Bomber" enemies from the original Sega Genesis game.

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