American Gangster font here refers to the font used in the poster of American Gangster, which is a 2007 American biographical drama crime movie based on the criminal career of Frank Lucas, a U.S. heroin dealer in the 1960s.
The font used for the movie title in the poster is very similar to Baskerville Roman designed by John Baskerville. The font is a commercial one and you can view more details about it here.
Download Baskerville Font
The Baskerville 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.