I got a phone call from George Miller [the director] asking me to play this role. We sat down and he showed me on his computer a documentary-type montage sequence of real penguins swimming, in an Esther Williams synchronized sort of way, and doing things I have never seen them do. Then he explained his vision of the film, asked me to read the script and to voice the character. I was cast a little bit later, and he let me do the singing as well!
![I got a phone call from George Miller [the director] asking me to play this role. We sat down and he showed me on his computer a documentary-type montage sequence of real penguins swimming, in an Esther Williams](http://cdn.quoteddaily.com/images/brittany-murphy/i-got-a-phone-call-from-george-miller-the-director-asking-me-to-play-this-role-we-sat-down-and.jpg)