The Thomas Beale Cipher (2010)

Using pioneering animation techniques to create a look never seen on film before, this 10-minute award-winning film tells the true legend of history's most challenging cipher. Professor White, cryptographer extraordinaire, is on the trail of the notoriously uncrackable Thomas Beale cipher—a century-old riddle hiding the location of a fortune in gold that has tormented its pursuers since inception. But White is not alone—shadowy forces are tight on his tail.

Unfortunately the movie The Thomas Beale Cipher is not yet available on HBO Max.