The French documentary "The March of the Penguins" rocked the US box office, taking more than $66.8 million since it was launched in June, becoming the most successful French movie ever.

"The March of the Penguins", directed by Luc Jacquet and originally entitled "La Marche de l'empereur", was reworked for American audiences with a narration by veteran actor Morgan Freeman.

The documentary, who became the second most successful documentary in US, after Michael Moore's 9/11, is one of the favorites to be nominated for the Best Foreign Language film at the 2006 Academy Awards.

According to Chicago Tribune, Luc Jacquet's documentary tells the unfathomable story of the emperor penguin, a species whose breeding cycle puts us mere humans to shame.

Every year, the penguin emerges from its underwater bath to brave the biting wind and bitter cold of Antarctica, waddling and belly-surfing 70 miles, single file in caravan, to the one locale on their blasted continent that can ever so slightly shield them from the harshest conditions.

All this so that the females can lay a single egg.