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Once Upon a Time in Springfield/References
Wikisimpsons - The Simpsons Wiki
Trivia
- This episode aired during the closing celebrations of the Simpsons 20th Anniversary with The Simpsons 20th Anniversary Special in 3-D on Ice.
- Anne Hatheway did the voice for Princess Penelope.
- The episode was ranked the worst episode of the entire Simpsons show, as per IGN.com and IMDB.com.