Original sentence: Audrey recorded vocals for the role, but found out afterwards that professional "singing double" Marni Nixon had overdubbed them all of her songs.Elizabeth Taylor actually lobbied for the part as well, but Hepburn was awarded it by studio heads as she was felt to have more box office appeal than Andrews (who had yet to make Mary Poppins).Footage of several songs with Hepburn's original vocals still exist and have been included in documentaries and the DVD release of the film, though to date only Nixon's renditions have been released on LP and CD.Hepburn lost the Oscar to Andrews and the media tried to play up the rivalry between the two actresses, even though both women denied such bad feelings existed.Hepburn was at the center of a controversy in 1964 with the release of My Fair Lady due to the fact that she had been cast for role of Eliza Doolittle instead of then-unknown Julie Andrews who had originated the role.She is said to have walked off the set after being told of the dubbing, returning the next day apologizing for her behavior.The controversy over Hepburn's casting reached its height at the next year's Academy Awards when Hepburn was nominated for best actress (despite being dubbed) in direct competition with Andrews who was nominated for Mary Poppins
Edited sentence: In fact, Audrey recorded all of her songs and did not know she was to be dubbed until after the editing had been finished.She is said to have walked off the set after being told of the dubbing, and the next day apologizing for her behavior.Some of her vocals still remain in the movie, and her rendition of "Wouldn't it be Loverly" has been preserved and many feel it sounds better than the dubbed version