Barbie Fairytopia: Mermaidia is a 2007 direct-to-video computer-animated film directed by Walter P. Martishius, and produced by Mainframe Entertainment. It is the 10th entry in the Barbie film series, a direct sequel to Barbie: Fairytopia and the 3rdd film in the Barbie: Fairytopia series film star Kelly Sheridan as the voice of Elina.

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