Winx Club: The Secret of the Lost Kingdom

Winx Club: The Secret of the Lost Kingdom (Italian: Winx Club - Il segreto del regno perduto) is a 2007 Italian computer-animated film based on the television series Winx Club, taking place after the events of the first three seasons. The film premiered on November 30, 2007, in Italy.

The film was animated by the Rainbow studio. In February 2011, Nickelodeon's parent company Viacom became a co-owner of Rainbow, and it was announced that Viacom would re-release The Secret of the Lost Kingdom through its subsidiary Paramount Pictures. Nickelodeon U.S. premiered the movie on March 11, 2012, and Paramount released it on DVD on August 7, 2012.