Transformers 4 is scheduled to start filming in Chicago on August 18th. That means extras are needed the various planned scenes. According to Red Eye Chicago, the production is looking for "clean-cut business, FBI and military-type males and females age 18 and older. Asian citizens, age 9 and older, are also needed for a Hong Kong scene." Auditions are scheduled for this Friday and Saturday at the Skokie Holiday Inn. The details are here. The main thing is it seems a continuation of previous extra calls in Texas and Michigan asking for that FBI and military looks along with what sounds like more China related scenes to be filmed in the city. Thanks to Wynton R. for the link.
Update: Another post for the casting call indicates that the Chicago filming will be from August 18 to September 27, 2013. Its the same as above casting call but the detail is a lot more clear and more reader friendly so recommend clicking here if considering trying out for an extra's role in the Chicago area. (via Seibertron)