In the behind-the-scenes clip, Reznor is interviewed alongside screenwriter David S Goyer (The Dark Knight Rises) about their involvement in the new game.
Reznor took his role as game composer very seriously, saying: "I look at video games as a true art form. The chance to be involved in something like this is exciting to me.
"It's every bit as viable as film work or music."
© Activision
Game director Dave Anthony spoke of his excitement over the former Nine Inch Nails frontman's involvement, saying: "I'm watching the Oscars last year, and I see Trent Reznor win the Academy Award.
"A year later, I see him walking around [Treyarch Studios] and I think to myself, am I dreaming? Trent Reznor is creating the score for our video game."
Writer Goyer adds: "Increasingly the line between event movies and event games are blurring - and that's a good thing."
