Is a new movie coming out in a few months starring Sam L. Jackson. The concept is brilliant IMHO, the idea of people's fear of snakes and not being able to get away seeing that they're on a plane.
The interesting thing about this movie is its popularity on the net. Its gathered a huge following of online supporters who even distribute merchendise. I saw a news report on it yesterday, about how internet fans have gone bonkers over this new movie. Fans even suggested that a certain line ("There are motherfucking snakes on the motherfucking plane") be put into the movie. New Line included it even though it raised their rating from a PG13 to R. I think its interesting the the production company is actually taking interest in their fan's ideas
Here's the Wikipedia article on it.