Union Square font here refers to the font used in the poster of Union Square, which is a 2011 American drama movie that centers on an unexpected reunion between two estranged sisters, while one is on the verge of marriage and the other is on the verge of a nervous breakdown.
The font used for the movie title in the poster is probably Gotham Bold. The font is a commercial one and is available for purchase from Typography.com.
Download Gotham Font
The Gotham font identified above is not available for free, please follow the link above and purchase a font license to download and use 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.