Watch The Blue Butterfly for Free: How to Stream the Movie Online at 123Movies. . Based on a true story, The Blue Butterfly tells the story of a terminally ill 10-year-old boy whose dream is to catch the most beautiful butterfly on Earth, the mythic and elusive Blue Morpho. His mother persuades a renowned entomologist to take them on a trip to the jungle to search for the butterfly, leading to an adventure that will transform their lives