Sebastiane (1976) on Netflix

Plot summary

Severus commands a small garrison on a remote coast, where a handful of soldiers have long satisfied their needs among themselves. Into that outpost comes Sebastian, an early Christian removed from Emperor Diocletian's guard and reduced to a common soldier after he stepped in to stop a bodyguard from strangling one of the emperor's companions. Sebastian keeps to his faith and turns Severus away, and the officer's desire for him only grows. Justin, a fellow soldier, loves him and gets nothing in return. Adrian and Anthony, two of the other men in the garrison, are in love with each other.