'Hereafter': How true to life is Clint Eastwood's film about death?

Clint Eastwood's latest directorial effort, "Hereafter," is garnering Oscar buzz around Hollywood. 

The film tells the story of a tortured psychic ( Matt Damon), a French woman ( Cecile De France), and a London School boy ( Frankie McLaren) who are each touched by death in different ways.
Just how true to life is "Hereafter?" 

Since the Dish Rag isn't quite ready to cross over to the great beyond, (and hopefully come back again) we asked four experts in the field of metaphysics who deal with the hereafter for their take on Damon's portrayal of an angst-ridden psychic and Eastwood's depiction of the afterlife.