Heath Ledger locked himself in a hotel room for a month to prepare for his iconic role as the Joker in The Dark Knight
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Leonardo DiCaprio was named Leonardo because his pregnant mother was looking at a Leonardo da Vinci painting in a museum in Italy when DiCaprio first kicked.
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When playing an American character, Christian Bale will give all his press interviews in an American accent in order to not confuse the audience.
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Jason Earles played as a teenager in Hannah Montana, but he was actually born in 1977.
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Daniel Radcliffe (Harry Potter) has more money than Prince Harry, the Prince of Wales.
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Ian McKellen and Patrick Stewart had no idea how to play chess when they appeared in X-Men 2.
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