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he videos attack Giuliani by saying he failed to prepare New York City for a major disaster, he ignored sick ground zero workers after the terrorist attack and he profited financially from his association with the tragedy after leaving office in 2001.

"We want to use this forum to reach people and show and tell and say, 'Look here are some truths that we want you to know," Greenwald told The Associated Press. The video blitz has an accompanying web site, therealrudy.org.

The Giuliani campaign did not immediately comment.

Greenwald, a Brooklyn native and registered independent, has made a number of documentaries, including "Outfoxed: Rupert Murdoch's War on Journalism" and "Wal-Mart: The High Cost of Low Price."

He said he was inspired to create the Giuliani videos earlier this year after learning about Giuliani's critics, who have begun to turn up the heat on the former mayor as his presidential campaign has taken off.

The spots feature interviews with many of those known critics, including relatives of those who died in the World Trade Center attack, fire safety experts and Jerome Hauer, Giuliani's emergency management commissioner from 1996 to 2000, who had a falling out with his boss in 2001.

Greenwald said each video cost about $40,000 to make and that fundraising he