'Prince of Persia: The Sands of Time” is a children's story beefed up to appeal to young teens. It's based on a video game, but don't make me play it, let me guess: The push-button magic dagger is used in the game to let you rewind and try something again, right? Since anything in the story (any death, for example) can be reversed, the stakes are several degrees below urgent. And there's a romance in which the boy and girl spend endless moments about to kiss for every nanosecond they actually do. If I were the Prince of Persia, I'd push the button, go back in time and plant a wet one on Tamina's luscious lips. The movie is set in ancient Persia, which is now named Iran. This is a land with truly astonishing landscapes: deserts, canyons, craggy monument valleys and a mountain range that resembles the Himalayas.