It's safe to say...
... this film doesn't work.
Is the exposition at the beginning that 'you have to make a fiction to depict something true' an excuse for this wasteful and directionless film?
If you want to see a film that takes a book and places the author of that book in the film, yet still communicates the essence of the book, watch Philomena.
If you want a film that takes a fascinating real-life story and murders it with artifice - watch Frank.
If you want to know more about the Meredith Kercher murder - look it up online. There's nothing to see here.
After the Russell Brand film and this, I am fast losing my respect for Winterbottom.