According to God of War screenwriters Patrick Melton and Marcus Dunstan, Sony is allowing them some freedom in creating the backstory of Kratos. Also, the pair said they hope to differentiate themselves from recent films based on Greek mythology like Clash of the Titans and Immortals.

“[Sony], you think they’d be sacred about the origin story and all of that, but they were encouraging us to make it different from those [games] and if that means going in dramatic shifts, they were cool of it. And they’re involved,” said Melton.

“Those movies can inform the God of War to step in a more bold direction,” said Dunstan. “Not to join those ranks, but to stand head and shoulders apart like other reinventions have done within that genre. The satisfying element is to look at those movies as a commentary on the genre and now say something different.”

Source: Shock Till You Drop