If you are seeing this to gain some insight into Lady Di, this won't happen. It openly states that it is a fable. As an untrue story, it has the liberty to portray Lady Di as they wish, which is entitled, selfish, going nuts with issues that are now manifesting .
No, or very little storyline, and an indulgent expose of her personality and issues at the time , made for a dissatisfying watching experience for me.