Milk font here refers to the font used in the poster of Milk, which is a 2008 American biographical movie based on the life of gay rights activist and politician Harvey Milk, the first openly gay person to be elected to public office in California.
The font used for the movie title in the poster is probably Futura ND Demibold. The font is a commercial one and you can view more details about it here.
Download Futura Font
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.