Seems like they're using the horses to lure or attract the phenomenon. The people in the movie definitely think it's aliens and seems like Yeun's character is trying to exploit it for a buck. Have a feeling it's going to turn out to be something different than straight up aliens though.
Ughhh, yeah haha great trailer and this remains my most anticipated but the last 30 seconds or so seems to really give a lot away. Palmer's charisma is already amazing.
I appreciate the warning, dude! I was on the fence about watching or just waiting for the movie next month--I'll wait