For the record, Georges Delerue would have liked to record with French orchestra but as he was to record all the sessions in August, the French musicians were on holidays and didn't want to do it in summer break!
Thank you for such interesting and valious information! So the album was recorded in August 1989 after the London Sessions in May of the same year at Abbey Road Studios.
As from what I read from liner notes of American Friends, Delerue liked very much British musicians and performers, that's why he recorded so much in London.
Wedge, you might be interested to know that there is in fact a longer ENGLISH broadcast version of "The French Revolution" in four 90 minute installments. The film appears to have been filmed twice, as the English version quite plainly features the same actors saying their lines in English! The first part is indeed titled "Years of Hope" (Parts 3 and 4 are titled "Years of Rage") and features "The King's Levée" ("Le lever du Roi") at the 4:30 mark, a scene which was cut from the French theatrical version:
This week, I decided to sit down with the film and attempt to cobble together a rough chronological score sequence. ...
... 16. Fersen et Marie-Antoinette  ...
 This chamber piece does not appear to be used in the film -- or, if it is, I didn't catch it. I'm speculating that it might be alternate music for the scene where Fersen professes his loyalty to the queen at a party she is giving. The film has a bit of source music here, so perhaps Delerue wrote something original that was later replaced. Again, this is just a guess. It could also be an alternate for "Le lever du Roi," as I believe the queen is dancing with Fersen in that scene.
Another misnomer. "Fersen et Marie-Antoinette" is -- believe it or not -- the music heard during Mirabeau's "encounter" with his "confessor." It's no wonder that you didn't catch it; you were distracted!
The same scene in the English broadcast version has the same music, but the visuals have been re-filmed to be more suitable for a TV viewing audience.
The title "Fersen et Marie-Antoinette" would better be applied to "La Reine et ses enfants," which is mostly a love scene between Fersen and the Queen.