Remember the best game trailer in the history of games? Dead Island, the zombie one? (Even if you watched it before, watch it again! It's so worth it.) Now there's a second one out. While not as good as the first one (what could be?) it's still scary and really sad. I'd recommend watching the first one again before watching the second.
There's also a new ThunderCats trailer, which can only be watched on Facebook (blech). It's interesting. A bit too anime-ish for my tastes, but I'll certainly watch it when it comes out.