The Odyssey tells the return of Odysseus, king of Ithaca, after the Trojan War.
He is no longer trying to conquer a city: he is trying to recover his house, his wife Penelope and his son Telemachus.
The route passes through the Cyclops, Circe, the Underworld, the Sirens, Scylla and Charybdis, Calypso and the Phaeacians.
Poseidon's anger delays the return after the blinding of Polyphemus.
In Ithaca, Odysseus must still reclaim his palace from the suitors.
For Nolan's film, the poem gives the foundation; the editing, secondary roles and balance between Troy and the voyage remain to be tested on screen.
Short version
After ten years of war before Troy, Odysseus spends years trying to get home. He faces less a simple succession of monsters than a series of temptations: forgetting the return, claiming glory too loudly, yielding to hunger, accepting comfort without home, or returning violently to a house that has learned to survive without him.
The poem begins while Odysseus is held by Calypso. Meanwhile Ithaca is coming undone: the suitors occupy his palace, Penelope holds the house through delay and intelligence, and Telemachus searches for traces of a father who is almost becoming a rumor.
Fuller version
The Odyssey moves between two centers. The first is Ithaca: the house is threatened, Penelope holds firm, Telemachus grows, and Odysseus' name becomes almost a political hypothesis. The second is the sea: Odysseus himself tells the Phaeacians the episodes that kept him from return.
At Ismaros, war continues through plunder. Among the Lotus-Eaters, danger takes the soft shape of forgetting. In Polyphemus' cave, Odysseus wins through the name Nobody, then loses through the pride of revealing his true name. That speech calls Poseidon and gives the journey its long debt.
Aeolus entrusts the winds; the companions open them. The Laestrygonians destroy almost the whole fleet. Circe transforms the men before teaching the next road. The dead speak in the Underworld. The Sirens promise mortal knowledge. Scylla and Charybdis impose a choice without innocence. The cattle of Helios punish sacrilegious hunger. Calypso offers immortality, but Odysseus still chooses return.
The final movement is not a simple happy ending. Ithaca demands a colder intelligence than the sea: hide the identity, test loyalties, suffer humiliation, bend the bow, strike, and finally let the gods close the violence.
What comes from Homer
What remains unknown for the film
Christopher Nolan's film now has a date, a Homeric frame, official images and several publicly reported roles. But the poem should not be confused with the final cut: the order of the narrative, the importance given to each episode, the duration of Troy, the place of the gods and several roles remain cinematic choices.
Continue the route
Questions before the theater
Should I read The Odyssey before Nolan's film?
No, but knowing the broad movement helps: Troy is over, Odysseus wants to return, and each episode turns the journey into a moral test.
Does The Odyssey tell the Trojan War?
It looks at the war after the fact. Troy returns through memories, songs and wounds.
Is the Trojan horse in The Odyssey?
Yes, as a reported story, especially through Demodocus among the Phaeacians.
What do we know about Nolan's film compared with the poem?
The film adapts Homer and foregrounds return, family, Troy and IMAX. The precise structure, cuts and many secondary roles remain to be discovered.