Liam Neeson has revealed that he was attracted to exploring family dynamics in Wrath of the Titans, and his co-star Sam Worthington believes that they are key to understanding the film.

The actor plays god of the gods Zeus in the forthcoming sequel, which sees his son Perseus (Sam Worthington) having to rescue him when he is kidnapped by his brother, Hades, lord of the Underworld (Ralph Fiennes) - and says he agreed to reprise the role because of the "interaction" with the other characters.

Speaking to the Irish Voice he said: ''The director Jonathan Liebesman always brought it down to the story.

''We knew that there were going to be 280 explosions in this scene but he brought it down to where our characters were in the tale at that moment.

''I just wanted more interaction with my son and my brothers in this one, which I think this script certainly provided. It touches on those dynamics of how Hades became separated from his brother, and on the jealousies that drove them apart. That's all touched on."

''The father son relationship is one that we can all relate to too, you know? In Wrath of the Titans the dysfunctional family just happen to be gods.''