The last time documentary film director Davis Guggenheim was in the San Francisco Ritz-Carlton, he was asking Al Gore to be in his new movie about global warming.
"An Inconvenient Truth" won Guggenheim an Academy Award and put Gore on the fast track for the Nobel Peace Prize.
Guggenheim, 46, now had the Hollywood clout to pursue any project he wanted. He chose to take on the country's public school system.
Back at the Ritz-Carlton, the director was just starting the promotional tour of his new film, "Waiting for Superman," a documentary that follows five families who reject the assigned path into an inferior public school and embark on a quest to gain admission into quality public schools - all public charter schools, including Summit Preparatory Charter High School in Redwood City.
Guggenheim, who sends his own children to private school, takes on the teachers unions, bureaucracy and a status quo that denies children the opportunity a public education is supposed to give them.