SAN FRANCISCO, Sept. 5 — Days before its scheduled debut, the first major television miniseries about the Sept. 11 attacks was being criticized on Tuesday as biased and inaccurate by bloggers, terrorism experts and a member of the Sept. 11 commission, whose report makes up much of the film’s source material.

The six-hour miniseries, “The Path to 9/11,” is to be shown on ABC on Sunday and Monday. The network has been advertising the program as a “historic broadcast” that uses the commission’s report on the 2001 attacks as its “primary foundation.”

On Tuesday, several liberal blogs were questioning whether ABC’s version was overly critical of the Clinton administration while letting the Bush administration off easy.

In particular, some critics — including Richard A. Clarke, the former counterterrorism czar — questioned a scene that depicts several American military officers on the ground in Afghanistan. In it, the officers, working with leaders of the Northern Alliance, the Afghan rebel group, move in to capture Osama bin Laden, only to allow him to escape after the mission is canceled by Clinton officials in Washington.