King Lear, played by Edwin Forrest. Photogravure by Gebbie & Husson Co. Ltd., circa 1897.
King Lear on Stage and in Film
Adapting King Lear for the Stage - Lynne Bradley
Edwin Forrest as King Lear - James Rees
Every Inch a King - Interview with actor Ian Holm on King Lear
Great Performances (Ian McKellen) - Watch the entire play online (thank you PBS)
Images of Performances of King Lear - UPenn Library
Interview with Sir Ian McKellen on playing King Lear
Jan Kott, Peter Brook, and King Lear
King Lear and the Theatre - Dennis Kennedy
King Lear Play Guide - www.openstage.com 
The King Lear Quarto in Rehearsal and Performance - David Richman
The Quarto of King Lear - representing the early stage history of the play? - Dr Christie Carson, Royal Holloway University of London
Ran - Japanese King Lear by Akira Kurosawa
Ran - Review, Roger Ebert
Stage History of King Lear (RSC)