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 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.