Hillary Clinton reflects on her mistakes in documentary debuting at Sundance

The four-hour documentary “Hillary” — which premieres Saturday at the Sundance Film Festival — “did not start out as the film it ended up being,” said the woman who’s the subject of the film.“It really started out as maybe a campaign documentary, because we had about 1,700 hours of behind-the-scenes footage — some of which is in the movie,” said Hillary Rodham Clinton.But filmmaker Nanette Burstein pitched the idea of a documentary that