This of course came to an end when Hong Kong itself fell to the Japanese in December 1941. But unlike on the Mainland, the occupiers were not able to put together a collaborationist film industry. They managed to complete just one propaganda movie, "The Attack on Hong Kong" (1942; a.k.a. "The Day of England's Collapse") before the British returned in 1945 (Teo, 1997). A more important move by the Japanese may have been to melt down many of Hong Kong's pre-war films to extract their silver nitrate for military use (Fonoroff, 1997).