Ken Rudolph’s review published on Letterboxd :
An elderly couple on the brink of celebrating their 45th wedding anniversary must cope with revelations about the husband's previous relationship 50 years earlier. The two performances, especially for my money that of the luminous Charlotte Rampling, are quite fine. Tom Courtnay lets it all hang out, looking all of his 78 years. Director Andrew Haigh proves that he is an auteur of rare sensibility outside of the gay film ghetto (his film Weekend is one of my all-time favorites.) And the scenery around Norfolk England is gorgeously photographed by cinematographer Lol Crawley. This is one of those rare films about growing old in a relationship, and does it without the tragic pathos of an Amour. That makes it all the more special and unique. But maybe a little too low-key to achieve sublimity.