Adaptations is a category at Austen Paradise that features a selection of just that, adaptations, or otherwise notes on adaptations...
Pride and Prejudice (Marvel Classics) by Nancy Butler
Screen Adaptations: Jane Austen's Pride and Prejudice by Deborah Cartmell
Lost in Austen by Emma Campbell Webster
Sense and Sensibility: The Screenplay and Diaries by Emma Thompson
Jane Austen in Hollywood Linda Troost