I went into this movie understanding that Carax and the Mael Brothers are not sources of standard Hollywood filmic or musical fare. I expected they'd be drawing from European cinematic traditions, though I'd say this piece goes much further, drawing from even older and “higher” forms of European storytelling, such as grand opera and Greek tragedy. The opening and closing songs especially feel most like a Greek Chorus to me.
With that in mind, I hope people will stay open-minded enough to ponder Annette's themes (re: celebrity, art, pop culture, cultural provocateurs, entertainment, exploitation, audience, forgiveness, etc.) with this foundation of tragic narrative, and not expect everything to be tied up neatly with a happy, condescending bow.
This film will not talk down to you. You need to add your own takeaway to the story, which some may not like. I liked it a lot, and am thankful that it didn’t follow standard Hollywood structure, which I’m frankly, tiring of. The audience for this film may not be as large, but it will be very appreciative that it was made. My thanks to all involved.