WHO IS BURIED IN MY GRAVE?, INT'L 1SH 1964 - BETTE DAVIS

Dead Ringer (released outside the U.S. as "Who is Buried in My Grave?"), the 1964  suspense thriller ("They were twins who once looked exactly alike until..."; "Mirror, mirror on the wall, now who's the fairest twin of all?"; about a sister who kills her twin in order to have the life she 'should have had')