Keene offers some excellent and insightful perspective on certain aspects of the movie, but as with many other commentaries (especially ones of Hitchcock films) she overindulges in guesswork, and it would seem as though almost everything in the film is somehow phallic or otherwise sexual in nature. Perhaps on some of these things she's right, but I wonder if she has a book somewhere regarding feminine sexuality in Hollywood film, which would explain her awkward fascination with the subject.

If you'd like to know a little bit about the history of how this film came to be as well as Hitchcock's process in filmmaking then you'll find that this is the commentary to listen to. There's actually a total of 4 commentaries, including this one - that exist for this film. What I liked about this track is when certain techniques and aesthetics Hitchcock liked to use are pointed out. If you're into that, you should find this informative.