Spot The Changes

Seeing how the only few bits we might ever see of The Internet consist of a few trailers and clips, I spotted something odd about the first teaser and second international trailer: The fact that the Korean crowd shown in the second trailer wasn't completed in time for the original teaser (or was a version of the film before CGI was added on to some scenes), and the fact that the fortress shown in the second trailer has been added onto with clouds, but appears to be in a lower quality. I'm not pointing fingers at anyone, this is just what I spotted.