I understand why some people don't like this movie, because in part of the movie they go deep into the disease and give a lot of explanation of it, so that can make it a little intolerable, but nothing serious, I found it very deep and as I said the most interesting thing is that connection you make with the characters.
And I don't have an affinity for movies based on real life events, but I do have an affinity for movies based on real life events.