A Gentleman in Moscow (2016) 2

I finished A Gentleman in Moscow yesterday afternoon. What was threatening to be the story of an insufferable aristocrat under house arrest in a grand hotel turned out to be a calming take on aging. From his sentence in 1922 to his escape in the mid-1950s, we see a man go from all-knowing to all-wondering, with many of his lessons coming from those younger. 

Given the popularity of the book, I can imagine it as a movie, which might make a case for it not being made. But I can hear the pitch:

"Dr Zhivago meets The Shawshank Redemption, with Daniel Day-Lewis or Ralph Fiennes as the Count. Only someone younger, unless we can do that facial cloning thing, like they did with the pre-slap Will Smith in Gemini Man."