D.C. Chancellor Michelle Rhee’s tenacious style of public school reform likely will reach its largest audience to date this fall with the release of “Waiting for Superman,” a new film by Academy Award-winning documentarian Davis Guggenheim.

With “Waiting for Superman,” screened at the SilverDocs festival in Silver Spring this week and scheduled to be released Sept. 24, Guggenheim’s goal is to do for public schools what his 2006 “An Inconvenient Truth” aimed to do for the environment — bring the severity of the problems to the attention of Americans not forced to deal with them.