Spartacus (1992)

Spartacus, a prisoner of war from Tracia, was made a slave at a Roman stone quarry. A rich merchant, Alvinius, is attracted to Spartacus' combination of fighting spirit and tactfulness. He sends Spartacus to a martial arts academy. Spartacus becomes a formidable gladiator. One day, Savinius, the Roman Governor, visits the school. To entertain the important guest, a bout is held which puts Spartacus up against a renowned swordsman, Gaza. Gaza is defeated. It is then discovered that Spartacus is no ordinary prisoner of war but the best warrior in the whole Tracian Army.

Unfortunately the movie Spartacus is not yet available on HBO Max.