The document provides a summary of the 2011 film adaptation of The Three Musketeers. It describes the main characters including D'Artagnan, Athos, Porthos, and Aramis. It outlines the plot where Cardinal Richelieu frames Queen Anne for an affair and the Musketeers must stop his plan. They travel to London to retrieve a stolen diamond necklace and battle Milady and Rochefort. In the end, the Musketeers prove Richelieu was behind the plot and are reinstated in the King's guard.