Disclaimer: I fully understand that movies aren't books and movies have to make money and I will try to limit any 'but the book was better' stuff.
The Victorian half of the plot was done really well. Like I said I thought Blanche was well-cast and I think this was my introduction to Jennifer Ehle, who was fantastic as Christabel. I really need to get on top of watching the BBC Pride and Prejudice. Also I could basically just stare at Jeremy Northam in period costumes all day and be perfectly happy. He was perhaps a little better looking and warmer than I had pictured Ash being but I think that's an ok concession for the movie version to make; worth noting but not worth complaining about.