I regard Beethoven's Third Symphony (the Eroica) as the best Symphony ever composed; and one of the handful of best pieces of music.
But until yesterday, I didn't realize that there exists a really excellent movie (posted below) about the first rehearsal of the Eroica, during which the whole symphony is performed (the recording is by John Eliot Gardner conducting an original instrument band called Orchestre Révolutionnaire et Romantique).
It is one of very few first rate movies I have seen closely focused on music, and with a music-appreciation enhancing effect (others include Ingmar Bergman's Magic Flute, and Thirty Two short films about Glenn Gould).
As well as the 'drama' that surrounds and permeates the performance; the actual rehearsal performance within the movie is filmed in such a way as to bring-out all kinds of details and aspects of the music that I hadn't noticed in the scores of times I had listened to it.
A few of the musicians were actors, but I think most of them must have been specialist musicians who were playing-along-with what we saw and heard performed.
The camera roved around the band; and the particular instrument being focused on, at any particular moment, would be subtly brought forward in the mix, so it was as if we were approaching and standing a bit closer to the player.
The drama element was interesting and effective. Haydn was featured as visiting the last movement of the performance and commenting: It is something quite new. Quite new. The artist as hero. Everything is different from today.
Perfectly correct - From the first two chords to its astonishing finale - after the Eroica, music never was the same again.