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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Nicole Kidman is scared of butterflies.
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In their early careers, Sylvester Stallone and Jackie Chan both took part in porn.
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Until he turned 12, Robert Pattinson's elder sisters dressed him up as a girl and introduced him as "Claudia" to strangers.
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When Will Ferrell met RHCP drummer Chad Smith he looked him up and down and said: “You´re very handsome,” and then walked away.
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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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