AceShowbiz -

"Mandela: Long Walk to Freedom" has unleashed a teaser trailer which features Idris Elba as the South African revolutionary and activist Nelson Mandela. The video, however, does not see Elba in close-up as it follows the star walking through a field from a bird's eye view, with six children seen accompanying him.

Even so, it offers a slight taste of Elba's performance as Mandela through a voiceover. "I have walked a long walk to freedom," the actor says in a convincing accent. "It has been a lonely road and it is not over yet. No one is born hating another person because of the color of his skin. People learn to hate. They can be taught to love. For love comes more naturally to the human heart."

For preparing his role, Elba admits he's never met Mandela in person. "I never met Mr. Mandela because he was very ill, so our interpretation of him was without his personal influence," he said as cited by Daily Mail.

The "Pacific Rim" star added, "But the script is such a good script, and obviously it comes from his book, and the book speaks for itself."

Also starring Naomie Harris as Winnie Mandela, the pic will hit select theaters in the U.S. on November 29.