[onli]

That would be highly confusing for a German. OV always means that it is in a foreign language here, in cinema listings. Adding OV to German movies would identify them as not German.

I know that does not follow from the meaning of the word, but it just is how the label is used.

[msavio]

Yeah, sure, people would be confused for a while, but as "OV" has variations anyways it could then be something like "DeOV", "Deutsche Orginalvertonung".

But honestly, it's not even about that being written there. I just want them to show up when I filter by "OV", as a lot of cinemas have that option on their website.

Luckily in Berlin there are the Yorck cinemas where they play OV's per default, so I ended up only going to their cinemas, only using their website to search what's playing. That's why I've only discovered now what Babylon is playing!