Dr. Dre (left) and Jimmy Iovine at the premiere of The Defiant Ones in Los Angeles. A four-part, nearly five-hour documentary film that began airing on HBO earlier this month, The Defiant Ones ...

opens the partners have just struck a multi-billion dollar deal with Apple. But the series, which runs about four hours and 20 minutes total, is not about business nearly as much as it's about music.

Tony Curtis (left) and Sidney Poitier in director Stanley Kramer's "The Defiant Ones." (Courtesy United Artists/Photofest) Whenever someone’s doing something radical, we’re always going to hear from ...