The line "I cannot marry you. I can only marry a beautiful woman." is apparently something that we know from Alma
Oh, Zoltan, that´s true, but obviously you misunderstood, that in the film Natalie says shortly before Almas words, read by another female voice: "Alma Mahler rumoured the story like this:".
Indeed! I wasn't in the room for a minute and came back when I heard Natalie's voice and saw the moment played out on screen.
As you can see from the responses here, I'm very grateful for this documentation since Natalie was writing up Gustav's words, which allows us to see what went through in his mind (as far is he himself could know) while writing his music. A unique angle which was lost to (or got corrupted by) Alma, from what I know.
In the film, one can feel how much of the tension relies on the expression of Natalie's character as the unrequited love looms over the scenes. Is it something that Natalie described in her diaries as well, or is it only a general feeling through the use of certain words?
What I also learnt is her sad fate, in that she was arrested because of her anti-war sentiments and died 1921 (probably not in prison?).
I'm a member of the IGMG and if I could make it to the yearly assembly, perhaps one could initiate a research into the diaries. And de La Grange would certainly support such a research as well! But I'm not a musicologist ...
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If I had known that you're all so interested to see Russel's film as well, I could have recorded that too. It was just after the documentation. I saw the opening scene, which I found just too strange (the woman in the white cocoon being "born" -- Mahler's dreams), and since it was already past midnight, I didn't watch the rest.