Movies that featured High End equipment

The French sci-fi film noir movie "Chrysalis" showed the protagonist detective playing a LP on a turntable in his apartment. Don't know the brand.

In the 1949 "Letter To Three Wives" the Kirk Douglas character has a custom built tube console. He specifically comments on how good it sounds. At a dinner party he cautions a guest not to touch it, but she still manages to break one of his long playing discs.

There's this Beineix film called "Diva"
http://www.imdb.com/title/tt0082269/
where the entire plot is based on a clandestine concert recording of an opera singer made by a mail-carrier audio geek, using a Nagra IV.

I found the movie to be completely ridiculous, but enjoyed the attempt to make a romantic hero out of an audio nerd living in a jazzy shag-pad adorned with gear.

There's an Asian action movie "Infernal Affairs" (the western movie "Departed" is based on it) which has some scenes involving hi-end stuff.

What was the system in "What women want"?