Ah, so it's a call-back to one of Agnes's lines from the movie. And based on the tweet, it seems I'm far from the only one who didn't get the reference. :-)
Interesting thematic choice. Yes, that's Кино - Группа Крови playing. Not sure whether this copytag will work, but it's probably okay for now. Callsign: Cedar? Codename: Kedr? /shrug
