Models seem the same lighting a bit different but the water is completly different (cutscene vs gameplay). Also shadows look less detailed ingame, the edges are blocky/pixelated ingame vs the cutscenes judging by the other newer videos. Some ofthose videos have been shown some time ago to or similar almost same material.
I must give say the cinematic direction of the cutscenes are excellent and 'vivid'. The water is excellent to in the cutscene and perhaps the gameplay on the boat (a bit hard to see it on my TV) to since there is not that much rendered. But it is not the same as the other ingame scenes.
Reminds me though of Halo2's cinematics vs ingame, I spent more time watching them than playing!
I dont know now if I missed something but it seems the animations are worse than initial showcases. Looks unatural and well IMO quite bad, "floaty" and "wiggly". Now if they can fix the framerate and enable vsync.