I just watched Paul McCartney Really Is Dead: The Last Testament of George Harrison. When I see a movie like this, I always wonder: what did this guy hope to accomplish with this movie? He couldn't have made any money on it. He couldn't possibly have believed all that stuff. I kept expecting it to be satire, but it never got funny.
I guess if you want a 97-minute exhaustive account of the whole "Paul is Dead" conspiracy theory, this is your movie. Otherwise, just watch The Rutles, which actually is funny and entertaining.