Thanks! Yes, I vaguely knew he was in and out with the Soviet regime, but not the details.
Of course, his music (a selection from his symphonies) was used in a later release of BATTLESHIP POTEMKIN, which is very much counter-culture and anti-authoritarian, but AFAIK, he didn’t write anything original for that.
(btw, I only have two Shostakovich scores on CD, the Naxos combo of THE GADFLY and FIVE DAYS, FIVE NIGHTS…as war/conflict-related films, I suppose they would qualify, but not sure how much they concern anti-regime sentiments as such).