The Sex Trek porn films are absolutely hilarious; everyone involved is obviously a Classic Trekkie and they’ve the good sense not to take it at all seriously; it’s almost more of a Star Trek parody with some random sex thrown in than a porno film with a Star Trek theme.
Not quite sure if this fits the OP, but a must-see:
http: //www.dailymotion.com/swf/kD07UDAiOI6vnxMpoR
I can’t find a link, but…
My college showed movies four times a week. One year, the crew managed to sneak in a 3-D Porno!. One of the funniest things I have ever seen! For some reason, a psychiatrist would literally ‘pop’ into sex scenes and start talking to the two having sex. There was a (actually pretty good) car chase scene, and, to top it off, there was a ‘snuff’ scene where the actress ‘drowned’ in a huge vat of soup. Thereafter, anytime someone would run past her, they would stick their finger in the soup and say, “needs salt”.
And, of course, the people who ran the movie would run out into the stairs and hose down the audience with super soakers during money shots…
Can’t remember the name of it, tho.