In response to accusations she imitated Bankhead in the role of Margo Channing in All about Eve. Bankhead resented Davis for the perceived imitation, which she considered mocking, and for portraying her Broadway Roles on film [Dark Victory, Jezebel, The Little Foxes]. http://cree.newsvine.com/_news/2011/04/01/6390804-bette-davis-v-tallulah-bankhead-by-harvard-hollenberg This comment is unusual in that Davis usually tried to deflate the myth [started by Tallulah for amusement and publicity] of any sort of conflict between them, instead expressing her admiration for Bankhead. https://books.google.com/books?id=xUFplyZZAZsC&pg=PA221&dq#v=onepage&q&f=false Similarly, when Bankhead was asked to do an imitation of Davis, she said "Why should I dahling, she's been imitating me long enough". Before candidly remarking "But really, it's been sheer coincidence that Bette's been playing the leading roles in films like Dark Victory. I really admire her very much."
Attributed