Complex sentence: Released by 20th Century Fox on December 2,2003 following the re-release of "Alien" in theaters on Halloween 2003, this nine-disc set replaced the five-disc set of the series, "The Alien Legacy".
Split into simpler sentences: Released by 20th Century Fox on December 2,2003 following the re-release of "Alien" in theaters on Halloween 2003. This nine-disc set replaced the five-disc set of the series, "The Alien Legacy".