Here’s a taste of filming from Chicago
From a DDOT Press release:
“The District will be the setting for scenes in the upcoming movie sequel Transformers 3, and residents and travelers are advised there will limited overnight street closures and parking restrictions when the production comes to town next month. An information hotline has been set-up, which will include the most up-to-date information, at (202) 540-8039.”
You can see a list of the street closures and parking restrictions here.