It's heartbreak with a very sour sugar. Medem is a very inventive storyteller and he builds a complex love story: it's epic and intimate at the same time. I do think, though, it loses strenght on the final part, when it turns out a little bit over self-explanatory. Besides that, it's Medem being the strong director he always is: I like his eye for reinterpreting cliches to dense sagas - it's a very witty cinema.
Later in life, and how events have engendered for each (growth, death, self, other "loves") all that remains is love. It is a feeling that this feeling exists, we have at the end of the film at a time when we say ... dramatic life of Hannah, only what comes in mind is the will to move on and find his beloved.