Top Ten Mermaid Movies – #8 At AquaTails, home of quality mermaid tails for swimming. “Barbie Fairytopia Mermaidia” is another little-kid movie, but the plot is good and the scenes are beautiful. I especially enjoyed the unusual design of Barbie’s mermaid tail. In this story the main character has to make great sacrifice, and learns some good lessons. I like this one better than the newest Barbie mermaid movie because of its great message.