Le Bouif errant(1926)

Bicard nicknamed Le Bouif earns 1,000 francs for lending his body to the experiments conducted by Professor Caligari. Further adventures await him when he encounters Ladislas, a young reveler, who happens to be the crown prince of Corinthia. This one, who favors living it up over his royal duty, commissions Bicard to replace him on the throne.