Felicity Jones was perfect!!
Sadly, I could be her father (but only just) but I have to admit I found her absolutely beguiling in Northanger Abbey as Catherine Morland.
She was the perfect combination of innocence, earnestness, sincerity, and good manners.
She looked wonderful in all her outfits and when she wore a bonnet it helped frame her very pretty face. That top hat thing she wore when horse riding was ugly, though.
For me she made this adaptation work. She contrasted nicely with the manipulative Thorpes and you could easily see why someone like Henry Tilney would be attracted to her.
Altogether, an outstanding performance.