Her voice has no range and isn't particularly interesting, and with all the benefits of modern technology there was only so much they could do to make her sound even passable. It's kind of appropriate that she picked Tom Waits since she has a deep monotone voice that could pass for a man's.

Here's the video. Johansson is shown riding in a car, getting makeup applied, sitting for a photo shoot, and kissing Salmon Rushdie.

(Source: Celebitchy)