In 2010 the movie "Paul McCartney Really is Dead: The Last Testament of George Harrison" was released. For any Beatles fan, this is a MUST watch and contains tons of those 'clues' and archival footage. It also explains the 1969 hysteria that broke out worldwide after listeners discovered the clues contained in lyrics and album artwork. Allegedly, the movie ensued after a package from London containing two audio tapes and having no return address was delivered to the Hollywood offices of Highway 61 Entertainment. The tapes supposedly contained the voice of George Harrison setting the record straight.
Anyway, it's very entertaining and a great conversation starter at any party. Check it out if you
dare to know the truth. 
http://www.youtube.com/watch?v=NgXK5WIlXds