To make a good movie just include snakes, planes, a woman being bit on the boob, a guy being bit where is hurts the most and Samual Jackson killing all those MF snakes on the MF plane. Snakes on a Plane is a lot of fun. It almost lives up the the massive amout of internet hype that preceded its release.
It looses points for predictibility, and obviously being "upgraded" from a PG-13 rating to R at the last momemt. It won't win any Oscars also.