'The Extra' by Michael Shea

Hollywood actor and comedian Patton Oswalt reads about Hollywoods next box office hit: Live-Death films with expendable extras going up against extremely sophisticated, electronically controlled mechanical killing machinesall in front of a live audience. A lot of people are dying to make it big in Hollywood...The Extra Michael Shea Book Trailer
Find out more about this author here http://www.michaelsheaauthor.com/
(From the YouTube description)
Publisher: Tor Books (February 2, 2010)