I just caught Little Manila: Filipinos in California's Heartland tonight, a half hour program on public television. Focusing on Stockton, it covers the immigrant Filipino experience from the early 20th century through the farm labor movement of the 1960's (the United Farm Workers Union would not have existed without Filipino activism).
"In its heyday in the 30s, the lively area of Little Manila in Stockton had the largest population of Filipinos outside of the Philippines. Narrated by famed Filipino-American producer Dean Devlin this documentary tells the immigrant story as Filipinos experienced it."
This webpage includes photos, preview and a transcript of the show. If you want a DVD, you can order it here for $14.95. It's history worth watching!