Complex sentence: Special Edition (part of the Universal Legacy Series) was released in September 2005, including a "making of" featurette called "The Art of the Sting" with interviews from the cast and crew.
Split into simpler sentences: Special Edition (part of the Universal Legacy Series)--was released in September 2005. Its "making of" featurette, "The Art of the Sting", included interviews with cast and crew.