FYI, Hong Kong Film Archive, a government-run institution and facility, did a selection and screenings of g100 Must-See Hong Kong Moviesh last year as part of their 10th anniversary. The list includes a lot of ancient stuff which I assume you can only watch at their facility, but nonetheless interesting.
"The 100 titles include works by 58 directors produced in different eras, including Benjamin Brodsky's "A Trip Through China", made in the early years of the past century, and works from the 1930s and '40s including Lai Man-wai's "A Page of History" and Zhu Shilin's "Sorrows of the Forbidden City". Brilliant works from the 1950s and '60s include Lee Tit's "In the Face of Demolition", Chun Kim's "Parents' Hearts", Griffin Yue Feng's "Golden Lotus", Fung Fung's "The Kid", Tso Kea's "The Sorrowful Lute", Evan Yang's "Forever Yours", Lee Sun-fung's "It Was a Cold Winter Night", Doe Ching's "Our Sister Hedy", Wong Tin-lam's "The Wild, Wild Rose", Li Han-hsiang's "Empress Wu Tse-tien", Chor Yuen's "The Pregnant Maiden", King Hu's "Come Drink with Me" and Patrick Lung Kong's "Story of a Discharged Prisoner".
Films from the 1970s to the '90s include Tong Shu-shuen's "China Behind", Tsui Hark's "Dangerous Encounter - 1st Kind", Ann Hui's "The Secret", Allen Fong's "Ah Ying", John Woo's "The Killer", Alex Cheung's "Man on the Brink", Ching Siu-tung's "A Chinese Ghost Story", Mabel Cheung's "An Autumn's Tale", Kam Kwok-leung's "Wonder Women", Derek Yee's "C'est la Vie, Mon Cheri", Jeff Lau's "A Chinese Odyssey", Wong Jing's "God of Gamblers", Patrick Tam's "Nomad", Yim Ho's "Homecoming", Peter Chan's "Comrades, Almost a Love Story", Wong Kar-wai's "Days of Being Wild", Stanley Kwan's "Rouge", Fruit Chan's "Made in Hong Kong" and Johnnie To's "The Mission"."
Official Booklet PDF:http://www.lcsd.gov.hk/ce/CulturalService/...See_Booklet.pdf