Eric Bogosian's play "Talk Radio", on which this film is based, was a finalist for the Pulitzer Prize.
When Barry is being introduced to the crowd at the SMU basketball game, the Emcee says that "football will be back in the fall". It was during this period that the real SMU football program had received the "death penalty" from the NCAA for recruiting violations, and the program itself had been forced to shut down operations.
The edition of Playboy magazine that John C. McGinley is reading has an interview with director Oliver Stone in it.
The movie featured a cast with more voice artists who were not seen in the picture than actors who made physical appearances.