It was really neat listening to them "talk shop" at the end -- he filmed "200 Hotels" on four videocameras, which were then transferred to 35mm. He died before I was interested in his music. Of prostate cancer IIRC (yep, I did).
When I had stock options I worked with someone who could have been Zappa's twin. Was really freaky; showed him the album cover from Apostrophe/Overnight Sensation, which had his mug on the back, and he agreed. :)
Enjoy!