Anchor Bay has put out several different DVDs of the film. I own this one. Not bad in the way of special features; the best one being a lengthy presentation of rare behind-the-scenes footage and deleted scenes narrated by director Don Coscarelli. My personal favorite, however, is the included 16-page booklet that contains a lot of badass pre-production art.
2) The movie was once parodied on Adult Swim's Robot Chicken.
Link(s) of interest:
1) Click here to read a plot outline of the movie, but beware of spoilers.
2) Click here to visit the movie's fanlisting.