When ever a conspiracy theory come to light I always watch, or read it with one thought in mind.  If the Theorist is selling a book or video on his/her theory I ignore it as they are only using the media to advertise their book or whatever.

They may be correct in what they say but by creating huge publicity they lose me.

I work on one theory.  The longer the advertisement for a movie or book the more schance it is garbage.