The Last Guardian is one of the most hyped about games this year, however so far the trailers have been vary short, but now there’s finally a somewhat lengthy trailer. In this 8 minute trailer we see plenty of cutscenes and gameplay. The trailer includes how Trico, the boy, met the giant beast.
If you want to play the game without any spoilers you may want to skip this. It seems like it shows mainly the beginning of the game since a lot of what happens is very similar to a tutorial at the beginning of the game instructing the player about camera angles, performing actions, etc.