I don't have the exact details. Maybe it's based on a combination of true events that were adapted and fictionalized to create the movie. But without clear information, it's tough to say for sure.
Hope is likely a theme. Given that there are four good days, it implies that there was a lack of such good days before. So these four days could symbolize a newfound hope in a difficult situation, like a person in a dark place finally seeing some light.
I think what makes it special is that it's based on a true story. It gives the story a sense of authenticity. It can make the audience feel like they are getting a peek into real - life situations and the real emotions that come with them.
Four Good Days is a movie that is based on a true story. It likely showcases real - life experiences, perhaps about a person's journey through a difficult situation, like addiction recovery, and the four days that were significant in that process. It could also explore the relationships around that person during those days.