The 'Purple Rain' is based on Prince's real - life experiences in Minneapolis. It's a semi - autobiographical story that delves into his life as a musician, his relationship with his family, and his struggle for stardom. The movie showcases his unique musical talent and the purple - themed aesthetic that was associated with him. The music in 'Purple Rain' was a huge part of the story, with Prince's original songs like 'Purple Rain' itself becoming iconic. It was a way for him to tell his own story through the medium of film and music.
Since the title mentions 'Purple Rain' and 'A True Story', it could be about a real - life event that was somehow associated with purple rain, whether literally or metaphorically. It could be a story set in a particular place where purple rain was witnessed and that event had a profound impact on the people involved. Maybe it's about a community's experience during a strange weather phenomenon that was purple rain, and how they coped, what they learned, and how it changed their lives.