King Richard the Third

As the title page of the first printed version of this play states, this is: “The Tragedy of King Richard the Third, containing his treacherous plots against his brother Clarence, the pitiful murder of his innocent nephews, his tyrannical usurpation, with the whole course of his detested life, and most deservèd death." That about sums it up.

Here is a detailed synopsis on Wikipedia.
This chart gives brief descriptions of each of the Historical Characters in this play: Historical Richard the Third

If your group reads the plays straight through in one sitting and you want to divide up the parts, we have a number of “cast” lists already divided up for you. These are text files that you edit to suit your group. We always recommend in a straight-through read that each participant take a moment beforehand to mark their parts—then everything proceeds so smoothly. (coming soon)

• Cast for 9, plus a reader for Stage Directions
• Cast for 10, plus a reader for Stage Directions
• Cast for 12, plus a reader for Stage Directions

For those of you who provide parts a scene at a time, this Character Chart shows all the characters' lines in each scene: Richard the Third

There are a number of movies of Richard III. This is with Ian McKellen.
Richard III
Starring Ian McKellen, Annette Bening, Jim Broadbent, Robert Downey Jr., Nigel Hawthorne
The classic version with Laurence Olivier, filmed in 1955.
Essential Art House: Richard III
Starring Laurence Olivier, Cedric Hardwicke, Nicholas Hannen, Ralph Richardson, John Gielgud
Wow—a silent version from 1912, the earliest surviving American feature film.
Richard III
Starring Carlotta De Felice, Albert Gardner, Robert Gemp, Carey Lee, George Moss
This is an audio recording of the play by professional actors with sound effects:
Richard III (Arkangel Shakespeare)
By William Shakespeare