1) Bette Davis and Joan Crawford

The tension between Bette Davis and Joan Crawford is Hollywood’s most famous rivalry. The actresses reportedly despised each other, with their animosity reaching its peak during the filming of 'Whatever Happened to Baby Jane?'. The on-set drama included public insults and even physical aggression. Their feud has been immortalized in pop culture, including the FX series 'Feud: Bette and Joan', further cementing their conflict.
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Edited by Priscillah Mueni