13) Marlon Brando and Frank Sinatra

Marlon Brando and Frank Sinatra clashed in Guys and Dolls as a battle between egos. Brando's method of acting put straight the attitude of Sinatra, making it an open hostility on the sets. Sinatra reportedly ridiculed Brando's style, and Brando retaliated by deliberately botching scenes, forcing Sinatra to reshoot. The battle between them became legendary, with rumors of insults and professional jealousy going behind their back.
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Edited by Sarah Nazamuddin Harniswala