'Transformers' film crew blows up silo on South Side

October 2, 2013 8:47:23 PM PDT
People making the next installment of the "Transformers" movies set off a big explosion in Chicago.

It took place in an old silo at 29th and Damen Wednesday.

After about a month shooting around town and filming "Transformers: Age of Extinction," the crew is about to call it a wrap.