Here's what you need to know about Io in the film:
* She is the love interest of Perseus: While initially reluctant to get involved with the mortal hero, Io eventually helps Perseus on his quest to defeat the Kraken and save her people.
* She is a strong and independent woman: Io is not just a damsel in distress. She is a skilled warrior who can fight alongside Perseus.
* She has a connection to the Kraken: Io's mother is the sea goddess Amphitrite, making her a kind of bridge between the gods and the monstrous Kraken.
It's important to note that the movie takes liberties with Greek mythology. In traditional myths, Io is a mortal woman who Zeus transforms into a cow to hide her from Hera's wrath. The movie uses this as a basis but significantly changes the story for its own purposes.