The reason Poseidon was so angry at the Trojans for laughing at the wooden horse is that, according to mythology, the horse was one of Poseidon's symbols.
The first twenty minutes or so depict events not from Homer's 'Odyssey,' but from his earlier epic poem, 'The Iliad,' which chronicles the Trojan War.
The perils and adventures Odysseus faces in this series occur in a different order than they do in the original poem.
In Homer's 'Odyssey,' the exploit with Circe is an entirely separate adventure from that of the Lotus-Eaters. Here, these famous chapters in Odysseus' life are combined into one, as it is Circe who feeds Lotuses to the sailors.
In mythology, Tiresias (Christopher Lee) was blinded by Athena (Isabella Rossellini).