Zack Snyder

Dueling odysseys hit the big screen

There were inscriptions written above the entrance of the Temple of Apollo at the Oracle of Delphi, and the two most famous ones were cautionary words of wisdom: "Know thyself" and "Nothing too much." Those bits of ancient advice are worth considering as two Hollywood studios hope to launch film franchises that use Greek mythology as the unlikely premise for popcorn entertainment.

"These are the stories that began storytelling in many ways," director Louis Leterrier said a few months ago on the London set of his "Clash of the Titans," the Warner Bros. epic that arrives in theaters in March with Sam Worthington as Perseus, Liam Neeson as...

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