MGM has set Shrek Forever After director Mike Mitchell to take on the live-action fantasy Once Upon a Time.

According to Variety, the script is by Charlie Vignola, Kevin Marcus and Bradley Marcus and has Cinderella, Snow White and Sleeping Beauty married to their handsome princes, the Charming brothers, and planning to live happily ever after -- only to see their spouses go missing. The sisters-in-law set out to save their husbands and the fairy tale kingdom.

An MGM rep said the studio does not have to license Cinderella, Snow White and Sleeping Beauty from the Walt Disney Co. because the characters are in the public domain.

No production date has been set.