The Reaping

I watched The Reaping last night. 
I was left with some questions, questions which get to the heart of the movie (that’s B-speak for “spoilers ahead”).
1.  Is the house in The Reaping the same as the house in The Skeleton Key?
2.  Why have none of my interns looked even remotely like Idris Elba?
3.  What accent where [...]