This Blu-ray edition features a double feature: 'Justice League: New Frontier' and 'Batman: Gotham Knight', both from 2008. 'Justice League: New Frontier' is an animated superhero film that presents an alternative origin of the Justice League, set in the 1950s. 'Batman: Gotham Knight' is a series of six short films that bridge the gap between 'Batman Begins' and 'The Dark Knight'. Both are rated PG-13 and belong to the action, adventure, and animated genre.
