"We're not here to make fairytales, we're here to follow them," quips the narrator (Adam Godley) early on in Once Upon a One More Time, the Britney Spears jukebox musical playing at the Marquis Theater. Although he is the show's antagonist, his pronouncement is unfortunately apt. Once Upon a One More Time is an insipid […] The full version of the article Once Upon a Warning for Next Time is available on The Theatre…