Hardware Wars (1977), the Star Wars parody that was played in cinema around the world, is now available at HARDWARE WARS – Google Video. (I definitely remember classmates of mine seeing it in Wellington cinemas in the late 70’s.)
Other related links: Grocery Store Wars | Join the Organic Rebellion, Fanboys (2003 NZ short film), and Feel the Force: The Jedi Street Preachers of Auckland (2004 NZ short film). The last two from Peter Haynes at www.haynesfilm.com.