Complex sentence: Another feature-length special "White Box" was released exclusively to the American market until it was eventually released in the United Kingdom on 15 November 2010 with its inclusion in the "Absolutely Everything" box set.
Split into simpler sentences: Another feature-length special "White Box" was released exclusively to the American market. It was eventually released in the United Kingdom on 15 November 2010 with its inclusion in the "Absolutely Everything" box set.