The film your talking about is Waking Life. Basically, the movie is of a collection of philosophers, most of which teach at the University of Texas (at least five I think), different essays and such works.

StrivingLife.net » Waking Life Script with Revisions Is the script. If you are into any sort of philosophy, I recommend you read this.

The first time I saw this movie, I was stoned. At a few points I was tripping out too hard. The theory "Free Will and Physics" changed a lot of how I viewed the existence of free will.

I've tried, and succeeded in attaining lucidity in my dreams, I just rarely can hold onto it. It's something I'm working on right now... As for abstaining from sexual activity, shit man, I dunno lol.