HOUSE OVERSIGHT 031827 He is hardly alone in making it. Numerous journalists have published books and articles retracing the paths that led the world economy to the precipice two years ago. The deregulation of the financial services industry in the 1980s and '9os; the growing popularity of complex and risky derivatives; the real estate bubble and the explosion of subprime lending — none of these developments were exactly secret. On the contrary, they were celebrated as vindications of the power and wisdom of markets. Accordingly, Mr. Ferguson recycles choice moments of triumphalism, courtesy of Lawrence H. Summers, George W. Bush, Alan Greenspan and various cable television ranters and squawkers. Even as stock indexes soared and profits swelled, there were always at least a few investors, economists and government officials who warned that the frenzied speculation was leading to the abyss. Some of these prophets without honor show up in front of Mr. Ferguson's camera, less to gloat than to present, once again, the analyses that were dismissed and ignored by their peers for so long. Dozens of interviews — along with news clips and arresting aerial shots of New York, Iceland and other disaster areas — are folded into a clear and absorbing history, narrated by Matt Damon. The music (an opening song, "Big Time," by Peter Gabriel, and a score by Alex Heffes) and the clean wide-screen cinematography provide an aesthetic polish that is welcome for its own sake and also important to the movie's themes. The handsomely lighted and appointed interiors convey a sense of the rarefied, privileged worlds in which the Wall Street operators and their political enablers flourished, and the elegance of the presentation also subliminally bolsters the film's authority. This is not a piece of ragged muckraking or breathless advocacy. It rests its outrage on reason, research and careful argument. The same was true of Mr. Ferguson's previous documentary, "No End in Sig