Utopia is a cinema which played mainly retro sci-fi movies. It was located on the SW corner of the Fortieth and Seventh, about one block north from Madison Square Garden, across the Institute for Extraspatial Studies and a Gunga Diner restaurant.
On October 19 it showed This Island Earth. On October 21 it showed Things to Come; that night, a youth (probably Knot Tops) who was on KT-28s was outside shouting about Richard M. Nixon and bombs and was arrested by the police. On October 27 it showed The Day the Earth Stood Still, a movie about an alien from space who warns humans about the nuclear war It was still showing the night it was destroyed by the monster and all viewers were killed.
After that event, Utopia was renamed as New Utopia. The first movies it showed was Tarkovsky's The Sacrifice, a Swedish film about someone's attempts to avert an upcoming holocaust; and Nostalghia.
Unless we are talking about a coincidence, most likely it was owned by Veidt Enterprises, and used to subconsciously prepare the people for the Alien Monster and a danger from space. In that case, the name Utopia signifies the theater's role in Veidt's plan.
In the real world, The Sacrifice wasn't released before May 1986. The name of the films are a juxtaposition to the dead who were sacrificed in Veidt's plan to avert the holocaust. It is perhaps of note that Tarkovsky had directed an earlier film titled Nostalgia.