Will You Be There? is a Korean time paradox movie where an older man travels 30 years into the past to visit his younger self and a regret in his life. As you can expect, there are butterfly effects of his actions that change the outcome, and that leads to subsequent visits in order to shape his present so that he has his desired outcome without changing other things that are important to him.
I enjoy experience this type of concept because there are always things in life that you wish you did better or differently. While we don’t have any mystical way to travel back and retcon out past, it’s therapeutic to imagine. The movie version is a fairy tale and you can just as well create a horror film from the concept. But I believe the director wanted to tell a satisfying story without pushing the boundaries of thought. That leaves this idea as a three out of five film.