Dr. Martin Luther King Jr's "I Have a Dream Speech" is one of the most famous addresses in world history, but the remarks have remained off screen in the few biopics created about the late civil rights activist. Attorney Clarence Jones filed the copyright for the speech for King in 1963. Since his death, the executors of King's estate—his children Bernice, Dexter, and Martin III—have refused most filmmakers' requests to use the speech and King's other quotes and writing.