Melissa Leo apologized on Sunday for dropping an 'F-Bomb' during her acceptance speech for Best Actress in a Supporting Role at the 2011 Academy Awards.
Leo had won the award for her role in "The Fighter," marking her first win and second nomination. She beat Helena Bonham Carter of "The King's Speech," Amy Adams of "The Fighter," Jacki Weaver of "Animal Kingdom" and Hailee Steinfeld of "True Grit."
"Those words, I apologize to anyone that they offend," Leo told reporters backstage after her win. "There's a great deal of the English language that is in my vernacular. I really don't mean to offend, and probably a very inappropriate place to use that particular word in particular."
"The Fighter" tells of real-life boxer "Irish" Micky Ward, portrayed by Mark Wahlberg, and how his brother, played by Christian Bale, helped him before he went pro in the mid 1980s.
Leo plays their mother and Amy Adams plays Ward's love interest, a cocktail waitress named Charlene.
"The Fighter," directed by Russell, has been nominated for seven Oscars, including Best Picture. Bale won the Oscar for Best Supporting Actor for his role in "The Fighter.
Leo was nominated for an Oscar for her role in the 2008 movie "Frozen River." She won a Golden Globe in January for her performance in "The Fighter."