The Blue Butterfly (French: Le papillon bleu) is a 2004 Canadian adventure drama film, directed by Léa Pool, produced by Porchlight Entertainment and Alliance Atlantis, distributed by Monterey Media and starring Marc Donato as Pete Carlton, a boy terminally ill with cancer, whose final wish is to find the elusive blue morpho butterfly. William Hurt plays entomologist Alan Osborne, who takes him to the jungles of Costa Rica to find the insect.

The story is based on the life of David Marenger and his trip with entomologist Georges Brossard in 1987. It was filmed on location in Canada's Montreal, Quebec and Central America's Costa Rica.