With Snakes On A Plane mania hitting an all-new high, filmmakers looking for a quick cash-in sequel had better start staking out territory now. Enthusiastic IMDB message-boarders have been brainstorming potential sequel titles for months now (Snakes On A Plain, anyone? Planes On A Snake?), but they're really stuck on the whole "snakes" idea, which will probably be played out by the time Samuel L. Jackson has fought his way through a few hundred CGI reptiles.