Transformers sequel shooting in Chicago

September 8, 2013 6:38:48 PM PDT
The cast and crew from Transformers: Age of Extinction have been working hard in downtown Chicago this weekend.

Earlier, they were shooting on LaSalle in the Loop.

Sunday evening, their chopper was circling over Grant Park.

Spectators struck out in their efforts to get a look at the action.

Barricades and a strong police presence are keeping fans from watching explosions.