The Bark Bites Back at 2012-01-28 18:51:08:
Considering the trailer is marketing for the movie, it's logical that, in this particular case, it focuses on Cole's predicament because that's the hook. It's the supernatural aspect of the story that's going to get butts into the seats.
That being said, I think it's very worthwhile to consider doing a trailer analysis because there's something to be said about their evolution as well: I've noticed many aim for a midpoint, giving one the "external" story for the first half, then flipping into the internal story.
I noticed this while, of all things, viewing the trailer for the documentary Anvil: The Story of Anvil (great documentary, by the way). I thought, wow, they're selling this as something humorous at first, but then you get a sense of the emotional journey as well.
Take a look:
http://www.youtube.com/watch?v=FF4H8lB2Y_o
The midpoint happens at... well, the midpoint. We see an intro, the complications, the midpoint, the emotional journey, and then what appears to be the promise of some personal triumph.
Now watch this trailer, almost the same exact length, with almost the same exact beats:
http://www.youtube.com/watch?v=-4QPVo0UIzc
So there's my two trailers pitching my two cents: I say go for it! Great idea.