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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Keira Knightley and Natalie Portman looked so much alike on set, not even their own mothers could tell them apart!
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Kobe Bryant was named after a steak.
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Michael Jackson tried to buy Marvel Comics in the early 1990s so that he could play Spider-Man in his own movie.
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Lindsay Lohan was approached to star in The Hangover, but she declined because the screenplay "had no potential".
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Clint Eastwood was in a plane which crashed into the sea. He and the pilot escaped the sinking aircraft and swam 3 miles to safety.
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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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