Stream The Other Boleyn Girl Online Free – Watch Full Movie from Home at 123Movies. . Based on the controversial novel by Philippa Gregory, "The Other Boleyn Girl" is a fictionalised account of the life of Lady Mary Boleyn who becomes mistress to England's king, Henry VIII, before being ousted by her younger sister, Anne. Mary leaves the Court to marry a commoner, but returns when Anne embarks on a reckless policy to save herself from ruin.