VIDEO: First Look - Christopher Plummer, Benjamin Walker Star in HBO's 'MUHAMMAD ALI' Biopic

HBO Films new drama Muhammad Ali's Greatest Fight from director Stephen Frears is coming to the cable network on Saturday, October 5th at 8 pm. The film stars Broadway vets Christopher Plummer and Benjamin Walker. Get a first look at the just-released teaser trailer below!

The courtroom drama chronicles Ali's battle in the Supreme Court after he was drafted into the Vietnam War at the height of his boxing fame. The champion refused to fight as an objector of the war itself.

Plummer portrays Justice Harlan (Christopher Plummer) while Walker takes on the role of his clerk. The all-star cast also includes Frank Langella, Danny Glover, Dana Ivey, Kathleen Chalfant, Barry Levinson and Ed Begley Jr.

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