Warner Brothers movie filming overnight at Michigan, Wacker

July 22, 2013 8:49:58 PM PDT
Don't be surprised if you hear some blasts in the Loop Monday night.

Filming is underway at Michigan and Wacker.

A Warner Brothers movie is being shot and they're using air mortars, so there could be some small explosions.

Police and firefighters are on the scene monitoring the shoot.

Filming wraps up by 7 a.m. Tuesday morning.