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A French HD remaster of LA NUIT DE VARENNES announced: http://www.dvdfr.com/dvd/f46121-nuit-de-varennes.html" onclick="window.open(this.href);return false;
DVD
BD
147 mins
French and Italian tracks - English subs

BD caps: http://www.ecranlarge.com/movie_image-list-8967-dvd.php" onclick="window.open(this.href);return false; (faulty listing it at 2.35)

It's already released since February 9th.

I received it yesterday. I can confirm French and Italian dts-HD Master Audio tracks and optional French and English subtitles. The disc is regionfree.
The exclusive interview with Ettore Scola is in Italian and offers French subtitles only.