Crusading investigative journalist or paranoid conspiracy theorist? Michael Ruppert, the subject of Chris Smith’s engrossing new documentary “Collapse” (which opens tomorrow) may be a little bit of both, which makes the movie so much more interesting. Environmentalists and sustainability folks will have a lot to talk about after the film, but for me, the most fascinating thing about the film is Ruppert, the character: He’s bubbling over with contradictions: brilliant but maybe a little nuts; and like a big dog with a ferocious bite who just wants to be pet. For the Wall Street Journal Online, I talked to Ruppert about his views on oil and energy, and the man remains utterly steadfast in his convictions. As he says in the film, “I don’t deal in conspiracy theories. I deal in conspiracy fact.” See the film, you be the judge.