For what it's worth, Chicago has it's own dedicated film at the FlyOver in Las Vegas (and probably other locations as well)... and it's honestly spectacular! I've paid for it twice, and my husband, who went in pretty cynical, was also amazed at it. He said he would pay to do it again as well. It was honestly the best "flying attraction" experience I've ever had. Not only are the movements impressive, but the films gives the illusion it was all done in one single take--I still don't know how they did it, because there are no obvious edit points.
I haven't seen any of their other films except Wonders of American West, which was okay... I would NOT pay to see that one again. But Chicago? Absolutely.