Sony has released a new behind the scenes style trailer for Left Behind, the forthcoming single-player DLC expansion for PlayStation 3 exclusive The Last of Us.

The video features Naughty Dog's Lead Game Designer Jacob Minkoff, and Game Designer Anthony Newman discussing several aspects of the content expansion's new setting, as well as voice actors Ashley Johnson (Ellie) and Yaani King (newcomer Riley) offering more insight into their characters motivations and relationship.

The full-length cinematic trailer has also emerged from its formerly IGN exclusive cave, and you can watch both embedded below. The Last of Us: Left Behind is due on February 14th on PlayStation 3.