What Ever Happened to Baby Jane? (1962)

Sibling rivalry at its most gothic. Bette Davis plays Jane Hudson, a former vaudeville child star gone sour, and Joan Crawford is Blanche, the sister whose film career eclipsed hers and who now depends on Jane from a wheelchair in their decaying Hollywood mansion. Robert Aldrich lets decades of resentment curdle into horror. Davis earned her tenth and final Best Actress nomination, and casting two famous rivals as the sisters gives every exchange an extra edge. Camp, cruel and genuinely unsettling; pick it to watch jealousy go all the way.