The Rachmaninov Vespers is a fantastic work, particularly when sung by a Russian choir (typically, they have fantastic basses). I also like Rachmaninov's Liturgy of St. John Chrysostom. Another great Russian composer of acapella choir music is Grechaninov. He too has a work titled Liturgy of St. John Chrysostom and another called Liturgy of Holy Week (Passion Week), that are great works.
Recommend Outstanding Russian Choral Music
This music, usually performed by the Russian Military Chorus, knocks my socks off!
Purchased the soundtrack from "The Peacemaker" movie but found no full-length works.
Also some good tidbits in "The Hunt for Red October".
Can any comrade out there direct me to the good stuff?