I just got my copy of the biography and after watching it, agree with all of the comments above. What is striking to me is how absolutely gorgeous Princess Caroline was in her youth. You rarely (never?) see such incredibly beautiful women, even on Oscar night and so on. I was also surprised to see that Stephanie was very pretty indeed, in a different way from her sister, but quite striking too. And of course, Princess Grace is beauty, in its purest, most flawless form, incarnated. The photographs or clippings of the series of husbands made them all look quite seductive too, in fact it was a leitmotive in the documentary :"It is easy to understand why C/S would have fallen for this guy". Ernst 10 years ago cuts as good a figure as Philippe and Stefano, in my opinion.
But the bias was so on scandal, wild life, jealousies. Some show of solidarity in some circumstances (for the good of the principality) between the sisters would have lightened the b....y tone. I liked Caroline's humble comment that strength is not a matter of character but of circumstances. I liked how she reaches for her father's hand at Grace's funeral, a subtle sign that she has become the parent in a way, the first lady, the one in charge of maintaining propriety and dignity. I am amazed at the education she has received. It makes Stephanie (whom I like) seem so childish when she complains about the boredom of long official dinners. (Although, in all honesty, Stephanie would probably have reached for her father's hand as well, had she been present. Also, Caroline is 7 or 8 years older.) Anyway, I always liked the reflection (read somewhere) that most shampoo girls dream of being princesses, and Stephanie always acted as if she dreamed of having been a shampoo girl. This is not to denigrate her, but there is an innocence, a desire to be seen and liked "like others" that makes you feel "she doesn't get it". I don't mean to be judgmental, I speak from the royal watchers' point of view, who have always found that Stephanie does not belong in the rarefied spheres of royalty.
For Monaco lovers, it is a DVD well worth acquiring.