right but again- trailer footage is film footage. this scene will be in the final film most likely. i doubt they are shooting an origin seperate from the film entirely and i don't get why his hair would be normally colored. even if it's the "mask reveal shot over joker's shoulder" we'd expect to see his hair color from behind.
This is all speculation based on limited context. I was only stating that there is no doubt that they're shooting in there. Nobody sets up that much equipment and brings a full crew down for *just* an actor rehearsal. Even if they wanted the dolly rehearsed there would be no need for the volume of equipment that is set up. I'm saying that they're filming, the nature of what they're filming I don't know, but they're filming.

