In 1945, while Bette Davis had already won two oscars, Joan Crawford won an Oscar for a role that Davis turned down.
Later, in the 60s, roles were starting to dry up for the two Hollywood legends, and Bette Davis was approached by Crawford to play Jane in What Ever Happened To Baby Jane? on the condition that the director, Robert Aldrich, confirm that he had never had sexual relations with Crawford.
The feuding escalated on set with reports that Davis kicked Crawford in the head, and that Crawford put rocks in her pockets for a scene where Davis had to drag her body.
At the Academy Awards in 1963, Davis was nominated and Crawford was not for her role in the film. Crawford made a deal with the other nominees in the category that she would accept the award on their behalf if they weren't able to attend. This happened when Anne Bancroft won the Oscar and she was not able to attend.
It is rumoured that Bette Davis commented when Crawford passed away in 1977, "You should never say bad things about the dead, only good … Joan Crawford is dead... good.”
Watch the preview of Feud that was aired during the Super Bowl here:
Feud: Bette and Joan premieres March 5 on FX.