“The Princess and the Pauper” puts a feminist, musical spin on the Mark Twain classic. With millions of combined views across social media, Alexis Leder’s fan-made adaption of Mattel’s “Barbie as the Princess and the Pauper” tells the story of a case of mistaken identity with the power to change the fate of a bankrupt kingdom. It is a timeless tale full of mystery, destiny, and dreams.