On a cool early-autumn evening in 1956, a glittering array of stars turns out in London for a Royal Film Premiere, where they will be presented to Queen Elizabeth II --- an elegant young mother and wife who has embraced her patriotic duty despite never expecting to take the throne so soon. Cameras flash, and a crowd surges forward as a limousine pulls up. Out steps a vision in dazzling gold: the greatest star of the era, Marilyn Monroe. She's a global sensation and money-making machine for Hollywood, with curves that drive men wild and a smile that lets women know she’s in on the joke. Finally, the two most famous women in the world will come face to face in public for the first time. And the world is watching --- unaware that Elizabeth and Marilyn have already had an accidental encounter that has changed their lives.