Barbie and the Secret Door is a 2014 computer-animated musical fantasy film. It was released to DVD on September 16, 2014, and made its television premiere on Nickelodeon on November 23, 2014. This film is the 28th entry in the Barbie film series. It was directed by Karen Lloyd and features the voice of Kelly Sheridan as Princess Alexa, a shy princess who discovers a secret door in her kingdom and enters a whimsical land filled with magical creatures.