Dolphin Tale 2 is not a completely true story. It takes some inspiration from real dolphin conservation efforts and stories, but the plot and characters are largely fictionalized to make for an engaging movie experience.
Yes, it is. The real - life events that inspired the movie are quite remarkable. Winter, the dolphin in the story, had her tail severely damaged. People worked hard to create a prosthetic tail for her, and her journey of recovery and adaptation became the heart of this wonderful story that was then made into the movie 'Dolphin Tale'.
Sure is. The movie takes cues from actual happenings and showcases the struggles and triumphs of the dolphins in a real-world context. However, some artistic liberties might have been taken to make the story more engaging for the audience.