Originally Posted by GoWalrus
They wouldn't reveal the Enterprise getting greased this early.
That's probably just a shot from the beginning. It starts the movie underwater according to the first 8 minutes we saw.
From what I remember about the beginning footage, they were on some secret don't-****-with-the-prime-directive mission, which is why the ship was underwater at that point. I think this sequence is clearly something else.
However, it remains to be seen if the Enterprise is actually destroyed, or just badly beat up (looked like pretty severe damage to the saucer and one warp nacelle completely destroyed). You can see the hull number when it's damaged and falling, but there is no visible number when you see the starship crashing (into the water and later into a building) at ground level.