The film itself has no US distributor and seems unlikely to get one in the current climate. US rights to Polanski's last film were bought by Sony Classics but then they never released it here, theatrically or on video. This French CD may end up being the only release of Desplat's score.
Out of curiosity, I just played this soundtrack on YouTube and enjoyed it thoroughly: very dark and moody stuff, featuring superb orchestrations dominated by the string section. Incidentally, one track happens to be a collage, something we don't encounter anymore nowadays. Well done, Alexandre!