William Kowalchuk and Michael Aschner's fizzy CGI cartoon combines fantasy and some clever insights into sibling rivalry while telling the story of a penguin princess trying to prove the existence of jolly old St. Nick.
Once upon a time at the South Pole, the Queen Penguin bears two daughters. First-hatched Crystal (Voice of Hilary Duff) is earmarked to rule her flock, but the slightly younger Lucinda (Haylie Duff) hates living in her twin’s shadow. The good-hearted Crystal, who suffers a broad streak of insecurity, reads fairy tales to chicks and hangs out with her geeky pal, Eugene (Jason Michas). Lucinda, by contrast, is popular with her snooty peers,...