The Unborn is a horror, supernatural film written and directed by David S. Goyer. Goyer is known for holding various functions on Dark City, Blade, Batman Begins and The Dark Knight. At best, he can turn out a pure horror script. He is probably one of the most prolific writers of the genre. 

The Unborn trailer can be view at MTV where you can read Goyer’s blog about the movie as well.

Just watching the trailer you see how Gary Oldman and Odette Yustman, take their roles seriously - it’s intense.  The trailer starts off slow but gets super intense near the end.