Julie is one of the most interesting characters that I have ever met. She takes her grief in a direction that I have never imagined anyone taking it. The idea of simply throwing away your old life after your family is killed in an accident. Seems profane to me. That's what makes the film so interesting, the fact that she takes her grief in a direction that we don't expect.
I agree-- it was so harrowing to see her different manifestations of grief and her evolution: first trying to kill herself, then trying to severe herself from her former identity and from other human beings, then coming back to humanity gradually, through the prostitute she helps, the pregnant mistress she gives the house to, and the composer she bonds with. It made me think, how even if you try to exile yourself from humanity, no one exists entirely alone...
One can see the grief on her face, but it is a very cold grief, more than in any of her other films Binoche gives the impression that her character in "Blue" is undergoing a complex state of thought.
Even after the greatest apocalypse, some seeds of life have escaped death, and they will continue to grow and to flower.
...but Binoche is such a glacier as an actress, so abysmally cold and distant that the Julie character was definitely written with her in mind (and I'm not making this up - the director said that much in an interview ). As you can easily detect, Binoche is definitely not one of my favorite actresses - this small mouth and these naive pseudo-melancholic eyes - such a cute saurian!
But hey! Who am I to criticize such a popular actress? Despite her frosty demeanor, she has a much better bank account than mine! And the important thing is that to represent and embody total alienation of one's emotions following a tragedy, she had the necessary soul ice to leave an incredibly strong impression on the viewers. An interpretation to remember !