Hazanavicius also took the prize for best director, and Jean Dujardin, the award for best actor.
“I am the happiest director in the world right now. Thank you for that,” Hazanavicious said.
The trio of victories marks the first time in Academy Awards history that a french actor and filmmaker were awarded the top acting and directing honors. The film also took home Oscars for best costume design and score.
Hazanavicious’ piece on the early days of Hollywood beat out a field that included “The Descendants,” “Hugo,” “The Help,” “Moneyball,” “War Horse,” “Extremely Loud & Incredibly Close,” “Midnight in Paris,” and “The Tree of Life.”