KathyT...you must be a lawyer..you question too much! I was a major corporation lawyer for years till i gave it up to find my soul, raise my awareness beyond this lowly earthly vibration and get ready for the shift...i am poorer now but very happy.
Anyway, even as a lawyer i had to use my instinct sometimes....not everything hits you in the face. There is clear scientific evidence of the existence of other dimensions, so why not the possibility of humans who can shift in and out of this low vibrational dimension?
I agree that it is hard to believe everything that is thrown at you on this topic, and some things are so absurd that they help to dilute the truth. I don't know the truth of the Brandon Corey film as i don't live in the USA, but i do like what big Dave has to say
Here's one of his interviews in a hotel that i hadn't seen before about shape shifting (five minutes long), hope this link works
http://uk.youtube.com/watch?v=uAGTJErVNBU