Two years ago, film crews turned Chicago into a battle scene for "Transformers: Dark of the Moon."
"Transformers 4" brings more mayhem to the Windy City.
The Chicago Film Office tells ABC7 crews are shooting at McCormick Place on Friday. Drivers should be prepared for periodic brief closures on King Drive between Cermak and 24th up to 7 p.m. Friday night.
On Saturday and Sunday, filming may require brief closures on Randolph Street between Michigan and Columbus from 7 a.m. to 7 p.m.
