Complex sentence: The film premiered on January 20 in the Documentary Competition at the 2008 Sundance Film Festival,, released in theaters in the U.S. on July 4,2008, and on DVD on November 18,2008.
Split into simpler sentences: The film premiered on January 20 in the Documentary Competition at the 2008 Sundance Film Festival. It was released in theaters in the U.S. on July 4,2008, and on DVD on November 18,2008.