MANILA, Philippines–Sleep-deprived, Filipino-American filmmaker Ramona Diaz’s mind was swirling with all sorts of “compelling” images: African-American girls dancing and chanting “Pen-pen de Sarapen.” An American school principal and janitress swaying to “Pinoy Ako [I’m Filipino],” the theme of the ABS-CBN reality show “Pinoy Big Brother.” And her film’s Caucasian cinematographer insisting on changing his citizenship to Filipino.

Diaz, whose 2004 documentary “Imelda” won Best Cinematography in the Sundance Film Festival, was in the country for almost a month, to shoot scenes for her latest documentary “The Learning.”

From controversial First Lady Imelda Marcos, Diaz is now training her camera on a group of Filipina schoolteachers who have migrated to Baltimore, Maryland, to teach in inner-city schools.

Diaz, director of photography Gabriel Goodenough and sound man Paul Flinton were in the Philippines for three weeks (from June 19 to July 13) to capture the homecomings of four teachers: Dorotea Godinez of Cebu, Rhea Espedido of Sorsogon, Mary Angel Alim of Antipolo and Grace Amper of Cagayan de Oro.