Which of these actors narrated the English version of the documentary 'The March of the Penguins'?

March of the Penguins is a 2005 French feature length nature documentary directed and co-written by Luc Jacquet, and co-produced by Bonne Pioche and the National Geographic Society. The documentary depicts the yearly journey of the emperor penguins of Antarctica.

It took one year for the two isolated cinematographers Laurent Chalet and Jérôme Maison to shoot the documentary, which was shot around the French scientific base of Dumont d'Urville in Adélie Land.

The documentary won the 2006 Academy Award for Best Documentary Feature.

The English language distribution rights were acquired at the Sundance documentary Festival in January, 2005, by Adam Leipzig of National Geographic Films, who had forged a distribution partnership with Warner Independent Pictures. In contrast to the French version, their English language release has a third-person narrative by a single voice, actor Morgan Freeman.