Beyond the Walls of Prison (dir. Lito Tiongson) (1987) 

OPEN ME!
"Beyond the Walls of Prison (dir. Lito Tiongson, 1987) a documentary about the quest for justice and freedom of former political detainees under the new government. The video bagged Best Documentary at the 1st Gawad CCP Para sa Alternatibong Pelikula at Video. " - CCP
For more martial law-era documentaries, you can visit archivist Rosemarie Roque's page on Cinemata: cinemata(dot)org(/)user/rosemarieroque/ (remove the parentheses and replace the word "dot" with a period (.))