Emperors baker and Bakers emperor - it refers to the fact that in movie just a regular young baker gets switched with real old Emperor which leaves everyone thinking that emperor did get younger by drinking the potion of youth.

Rudolph II, the Holy Roman Emperor, does not have a simple life. And yet he manages to complicate it even more with his frequent outbursts of anger. While he searches for a mythical Golem, an animated clay statue, Matthew the Baker is thrown into the dungeon for selling the special buns for the emperor to people. Matthew is accidentally mistaken for the emperor and takes his place. And when the Golem is finally found, it will complicate things beyond comprehension...—Marek 14