Complex sentence: She played the upstairs neighbor in the 1954 feature "Rear Window" with her final film role as the uncredited voice of a telephone operator in the 1959 film, "North by Northwest".
Split into simpler sentences: She played the upstairs neighbor in the 1954 feature "Rear Window". Her final film role as the uncredited voice of a telephone operator in the 1959 film, "North by Northwest".