If you're going to make a movie like this....
1. All women of the cast should get naked, no exceptions. This hearkens back to the horror 80s days of Linnea Quigley and Brink Stevens.
2. Stop making the movie a montage video. The scene where the creepers attack the girl could have been great, but it was turned into a crappy montage video when it should have been a great torture rape scene.
3. Don't put playboy playmates in a movie, advertise them as playboy playmates and then they don't deliver on the nudity. These playboy playmates shouldn't be hired for their acting chops if they are in a movie like this.
4. Quit making the final girl some virgin that lives or never shows the goods. I'm sick of the final girl idea that Friday the 13th started. Friday the 13th part V is probably the only film to ever push the final girl out of bounds with the final girl running around in a see through wet t-shirt. Final girls can have sex. Final girls can show boobs. Final girls can die.
5. Don't be afraid of full nudity. Sure this film shows a lot of full nudity but what I'm saying is if you're going to release a film that is unrated, push the boundaries a little. Heck, the R rated version of Zack and Miri make a Porno has more muff than this movie.
6. Babies and old women should not be off limits. You'll definitely get more viewers if you throw in some shock value.