The 260-seat Trump Cinema operated circa 1968-1977 at the now-demolished Trump Village Shopping Center in Coney Island. It was apparently evicted after adopting X-rated fare and the space long housed a Radio Shack store.
A better look at the classy Trump Cinema, also known as the Trump Village, as it appeared 2/24/77 in the New York Daily News. Photo by Dan Jacino.
The short, poignant life of the Trump Cinema/Trump Village, one of hundreds of forgotten neighborhood theaters, as related at @movie_theaters. http://cinematreasures.org/theaters/4050
Two earliest ads I can find from Trump Cinema's early embrace of mainstream films, albeit as part of very wide expansions, in August/September 1969.
Tiny Trump Cinema stands out more in a smaller reissue break (6/13/70) but is much harder to find in oddly-formatted list in 12/31/70 ad highlighting an actor who I once spent five hours interviewing. https://nypost.com/2012/03/11/leave-the-gun-take-my-career/
9/3/71: Tiny Trump Cinema is sub-running a UA western, maybe with a second feature, along with the even-smaller 242-seat 1937 venue in Grand Central Terminal, which will disappear around the same time as the Trump.
First Trump Cinema appearance in the New York Times was in an ad that ran 12/18/68. It was the only Brooklyn venue showing a pioneering documentary about a drag contest.