As posted about earlier, Transformers 4 production will be filming in Chicago starting next Friday. Thanks to @filming_chicago we know have a few more details from a letter that I think was sent to local residents and businesses in the Lake Shore East area. If my memory serves, many of these locations were used in Transformers: Dark of the Moon. Below is based on what I could make out from the notice. I redacted names, email addresses and phone numbers. The main parts is filming will involve a helicopter, vehicular action and pyrotechnics with more filming to occur on August 31 and September 1. Update: Swapped out letter with a clear version, corrected the ? from before.

Dear Building Managers, Businesses and Residents of Lake Shore East,

Paramount Pictures will be filming scenes for the feature film Transformers 4 around the Lakeshore East Neighborhood. We are working closely with the Alderman's office, the Chicago Police Department, and the Chicago Film Office to ensure a smooth and cooperative filming event. Below is a list of neighborhood activity that could affect you.

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