What's with the Ave Maria
Was there a significance to this playing throughout the film?
shareI don't know how intentional it is, but it's used often as part of penance, and I think that a prayer seeking forgiveness (pray for us sinners, now and at the hour of our death) is fitting given the themes of the film. We have Riddler who is obsessed with punishing the "wicked" and corrupt (in his eyes). We have a Batman who describes himself as "vengeance". These themes are brought more into focus later on with a couple plot points I don't want to spoiler for anybody reading. I can elaborate if you like.
Also, it does fit with the gothic architecture and the sombre atmosphere. When Wayne tower looks like a cathedral and we visit an actual cathedral for a funeral, and we have the demonic Batman and so forth, yeah, I think even just in terms of "vibe" it fits.