How can I get the soundtrack of the 1989 movie Caruso, with Michael Kamen conducting the National Philharmonic

The movie starred Aidan Quinn as a Slave Trader marooned on a beautiful island who comes to grips with his humanity as he must learn to overcome his prejudices as he is befriended by an African who shows him how to survive. The film is shot in the Seychelles and the island imagery is breathtaking. But the soundtrack is beautiful and haunting. It's a slow, pensive, ethereal harp leading a full orchestra in an airy unearthly adagio with an oboe in the background hovering enigmatically above it all. I'm not seriously into clical music but this is exceptional. It's a mystery why such an amazing score was not widely distributed. It could've easily won a grammy.