According to Chris Begley of Batman-news.com, a source living in Detroit claims to have overheard a man wearing a Milo & Sage badge, at a local coffee shop, talking about possible shooting locations.
Milo & Sage is the working title for Batman vs. Superman. Here’s what the source heard:
The filmmakers wanted to shoot at the courthouse in Detroit at night, but because there would be loud weapons, they ran into complications.
There was talk about shutting down some train crossings.
They were trying to find the right convenience store for a robbery scene.