Changeling font here refers to the font used in the poster of Changeling, which is a 2008 American drama movie based on the real-life events in 1928 in Los Angles.
The font used for the movie title in the poster is probably ITC Avant Garde Gothic Condensed DemiBold originally designed by Herb Lubalin. The font is a commercial one and you can view more details about it here.
Download Avant Garde Gothic Font
The Avant Garde Gothic 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.