The Chicago Tribune is reporting that Transformers: Age of Extinction will be filming around 111 South Wacker Drive this weekend and that it will involve pyrotechnics. The article suggests this might be the last weekend in the city. Thanks to Colin H. for the link.

The robotos-in-disguise sequel starring Mark Wahlberg, Stanley Tucci and Kelsey Grammer will be shooting around the 111 S. Wacker Drive building from 7 p.m. Friday until 6 a.m. Monday. According to a letter sent out to businesses in the area, “Filming will involve the use of live stunts and large pyrotechnics.”

And now for the boring part: Street closures will take place on Wacker Drive from Washington to Adams, Franklin Street from Madison to Adams, Monroe Street from Canal to Franklin and Madison Street from Canal to Franklin.