Calgary Public Library
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Heffernan, John
Snakes on a plane, Serpents à bord, an Alliance Atlantis release ; New Line Cinema presents a Mutual Film Company production ; a David R. Ellis film ; produced by Craig Berenson, Don Granger, Gary Levinsohn ; story by David Dalessandro and John Heffernan ; screenplay by John Heffernan and Sebastian Gutierrez ; directed by David R. Ellis