This movie (whose title has gone back and forth between 'Snakes on a Plane' and 'Flight 147') continuously reminds me of a skit I saw on SNL a few years back, where, in fact a bunch of snakes were loose on a plane. It was moderately funny, but at the end of the skit, a obivously hand-puppet snake comes on in front a blue-screened fire and begins yelling "I AM THE COBRA! WHEN YOU LEAST EXPECT IT, I WILL BE THERE...FOR I AM THE COBRAAAA"
It loses alot of the humor when attempting to retell the story.