The Last of Us was one of the PlayStation 3's best games, and, as a brand new property, it went through a long and difficult development period. To give you a taste of just what it was like, Sony and developer Naughty Dog have released a lengthy documentary detailing how the game was made, and you can check it out below for free. The video was produced by Area5 — which recently kickstarted a new video series on the culture of video games — and provides a deep look into what it takes to build a brand new AAA title, featuring interviews with multiple members of the development team. It's also a great chance to reacquaint yourself with the game before checking out the recently launched downloadable add-on, "Left Behind."