Chicago font here refers to the font used in the poster of Chicago, which is a 2002 musicial movie based on the satirical stage musical of the same name. The movie centers two murderesses who find themselves in jail and on death row together and fight for the fame that will keep them from the gallows in 1920s Chicago.
The movie title in the poster was probably designed with Futura Book. The font is a commercial one and you can view more details about it here.
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The Futura font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.