I can imagine Ralph and Kate owning it, but like... I'm sorry, this will make for one BORING movie. (Spoilers abound in this post in case you haven't read the book)
Part 1: Ralph and Kate do it. A lot. Well, more specifically, as the author says 5000000 times throughout the novel, Ralph reads to Kate, then they take a shower, and then they do it, and then they lie together randomly.
Part 2: Ralph goes to law school. Kate's on trial for bein' a Nazi. O noz! (No one saw this coming, especially seeing how the book takes place in Germany.)
Part 3: It turns out Kate... IS ILLITERATE!!!!!!!!!!! Seriously, this is the big twist in the book. I was like, "...whuh?" And then she dies.
Yeah, when it comes to dealing with the Holocaust, Night or Anselm Kiefer it ain't. LAME.
