I might be behind the curve on this, but I haven't seen it actually posted in many places. Even IMDB doesn't have an official trailer link yet. I'd heard of it, but only just saw the trailer today in front of "Civic Duty" (which is kinda "meh," for the record.)
Y'remember that movie "The Good Son?" "Godsend?" That horrendous recent remake of "The Omen?" "Joshua" kinda looks like what those would look like... if they didn't suck:
Gah. I can't remember having been that freaked out by just a trailer.