A documentary covering Stevie Wonder’s work to make Dr. Martin Luther King Jr.’s birthday a holiday is now in production.

A new documentary from Stevie Wonder will explore his role in establishing Martin Luther King Jr. Day as a federal holiday.

In the repetitious cadence of Martin Luther King Jr.’s most famous speech, “I have a dream” was followed by “one day.” Those two words, “one day,” made us look to the heavens with promise, hope and ...