Back last year, KoopaTV watched The Last of Us as a movie. So there really will be an actual movie of it that is a game adaptation. There is also going to be a port of it coming to the PS4. In other words, Sony and Naughty Dog are milking this for all it is worth.
We said by the end of our live viewing of the game's cutscenes that it'll be better off as a movie. Not that we'd watch it or anything when it's released. (We WOULD watch the "Madden Curse" movie, though.)