In 1937 the War of Resistance Against Japan began, and, except for the foreign (Western) concessions, all of Shanghai fell into the hands of the Japanese. So they continued their film production work inside the "isolated island" of the concessions.
民國廿六年抗戰爆發，當時上海除了租界地之外，全部淪陷在日本人手中，他們就在被稱為「孤島」的租界內繼續製片工作。