For airing on MST3K the nudity scenes were edited out ( explaining why the original movie was rated R ). Let's be realistic; this is a B-movie that one would watch more for entertainment than for consideration for an Academy Award. For some reason this is the only one not yet available on DVD ( except what looks like bootlegs sometimes available on eBay ). DS I ( with Barbi Benton ) is pretty original; DS II ( with Monique Gabrielle - a personal favorite of mine ) is just a little better; certainly funnier. DS IV is ( I believe ) pretty much a remake of DS I ( and the only one to have a previous DS star, Rick Hill ). Are the plots realistic? No, that's why the genre is generally referred to as Fantasy/Science Fiction. Of course, I AM biased - the Deathstalker series ( all of them ) are among my favorites. Just good, fun, and sometimes funny. Enjoy.