31 Days of Horror" Day 3 "Slither"

Summary: After being rejected by his young wife (Elizabeth Banks), a pretty buff older man is infected by an alien being while attempting a tryst in the woods. He goes on to infect others, giving them truly disgusting symptoms such as an insatiable need for meat and a desire to  physically meld themselves into one super creature.  The beings are spread through slug-like creatures that are all controlled by their host, who is obsessed with reuniting with his wife. The film is very gory. I think a Youtube commenter offered-up some sage words of advice:

"This movie seriously traumatized me when I was little. I puked watching. Reccomandation: have a strong stomach. Don't eat before the movie. During the movie. Or after. #nuff'said"
                                                                                                                       - mcmappleturnover 

This film is also very entertaining and a great re-imagining of the classic body snatchers genre.