Arrival
I never thought I would be able to rewatch this and match the experience I had during my first watch. Well, I was right. It was ever more touching than I ever expected. Just knowing what the flashbacks mean and the little references completely change the way you interpret the sequences and just makes you think twice about everything you have watched yet.
Villenueve's movies are a very specific genre which I would like to describe as "Ambiguity until it makes you look at yourself and the people around you in pure admiration or hope."
His allegory and metaphors will remain unmatched for someone as me who is blown away when they are given the tiniest hint of what the scene might represent.