I mentioned The Painted Veil, starring Naomi Watts and Edward Norton, here.
Based on a Somerset Maugham story, this film tells a character-driven story about two imperfect human beings who discover great love through adversity, service, repentance, and growth. Of course, you can watch it for free on Netflix. But below is a link to purchase the DVD through my Amazon Associates account. (I get credit points from Amazon, which in turn allows me to purchase things from them less expensively.)
Warning: There is one brief scene portraying a sexual encounter. As I recall, there is no frontal nudity there, however.