10 Horror Movie Mistakes You Never Noticed Before

While it was a so-bad-its-good memefest at the time, Snakes on a Plane has now largely been forgotten, its novelty succumbing to the onslaught of bonkers high-concept horrors that have arrived in the years since.

In the film, Samuel L. Jackson takes to the skies as FBI Agent Neville Flynn, whose job of protecting a witness in a crucial murder case becomes so much harder when he discovers their plane is full to the brim with venomous snakes. Now, most films don't understand depressurisation on aeroplanes, but Snakes On A Plane takes the biscuit.

During the third act, Flynn instructs passengers to hold their breath before he shoots out the window - ostensibly to get rid of the snakes. But this opens a whole can of fanged worms director David R. Ellis clearly wasn't aware of. You see, holding your breath is a bad idea when atmospheric pressure suddenly drops, and causes lung injuries similar to those divers experience if they do the same moving between depths.

Not only that, but such a large hole in the aircraft would destroy its hull almost instantaneously, leading to catastrophic damage in mere seconds, not an extended scene in which passengers can stand, walk, shout and cling onto each other. And don't even get us started on Flynn being able to march up the plane into the cockpit and pull the door closed behind him.