That's the exact process. They start filming the set pieces before they have a script. Then film exposition scenes in small rooms on sound stages, so it's easy to reshoot stuff later. It's insane to think when there's a big car chase, the actors don't know why they are doing it.
That is insane. How do you know this?
I've seen the cast talk about the process in various interviews. This video explains things quite well.
That was interesting. Thanks. It can't ways have been that way. At least the first one is coherent. They must have changed to that at some point.
I might have to look into when the change happened