"Away From Her" -- my story, except that the genders were reversed. Eventually the wife makes a new life for herself with others at her care facility and the husband (in my case, the wife) is set adrift and you understand how he learns to laugh with someone else while, at the same time, he never really leaves her.
“A Separation”, an Iranian film on Newflix about a wife who wants to leave the country, but whose husband will not, because his father is late stage Alzheimers. The wife wants a divorce, and the whole family is torn apart. The acting was similar to Amour. Sad story, but very touching.
"The Savages", a film about a brother and sister wh have been estranged from their father that now have to deal with his dementia and placing him in a facility. I just saw it yesterday on demand. Not necessarily a favorite but deals with all the emotions a family has when faced with these decisions.
I saw "Away From Her" a few years ago. Last month, I read some short stories by Alice Munroe for my book group, and realized that the movie was a dramatization of her story "The Bear Went Over the Mountain."
I just saw "Nebraska" with Bruce Dern. Great movie, not only for his performance as a man with some form of dementia, but also the actors who played his wife and son. One son "gets it" and does a wonderful job of therapeutic fibbing and making the best of the time he and his Dad have left together. The wife and other son are much more typical, sadly, of a family's reaction. It was particularly interesting that when the understanding son was asked "Does your Dad have Alzheimer's?" he just answered, "No, he just believes what people tell him." I read that as the son trying to preserve the Dad's dignity. Parts of the film could actually be used as training for family caregivers--do's and don'ts. I'm thinking the author of the screenplay must have experienced dementia first-hand with a close relative.