... because it is brilliant for what it is.
What it is, is an "art film". The shots, the set design, the concept are very artistic, and as such it is a gem of movie, within that very narrow spectrum of "art films" that have happened rarely throughout film history.
Harrison's soundtrack is WAY AHEAD OF IT'S TIME! Only now can someone like me appreciate it for the first time, having just seen the movie for the first time, 46 years after it was created! Wow. Think about that! A movie that is not appreciated, even by a Beatles fan, a George fan, until 46 years later. Truly a movie and soundtrack that were way ahead of their time.
Now, is this a great movie? No.
But it is a very interesting cinematic experiment which led to the creation of a truly great soundtrack by Beatle George Harrison!
I did actually find the movie very visually interesting. Jane Birkin of course has her own appeal, but aside from her the movie is still very visually exciting and interesting.
I am surprised and disappointed that this movie has only 6 reviews including mine. What a shame! Harrison is still so under-appreciated! While I used to be a Lennon fan above all the others, now it is George who I am fascinated and delighted by.