In an effort to make our film visually dynamic, we also conducted an exhaustive search in six different countries for every scrap of archival footage we could possibly find, and we ended up unearthing some hidden gems.

• 为了让我们的影片更加有视觉震撼力，我们从六个国家搜集了我们可能找的到的许多影像档案资料，我们也从中挖出了许多遗珠。