Despite the entire fifth season being produced in Nickelodeon dub, the following movie was not.
A Rai English dub of the movie was released exclusively on Netflix on 10 October 2014. An official teaser trailer was released on 16 April 2014, on the official Winx Club channel on YouTube an official preview was released a short time later. The movie was released theatrically in Italy on 4 September 2014. It is a sequel to Winx Club: The Secret of the Lost Kingdom and Winx Club 3D: Magical Adventure The third Winx Club movie was officially announced when the official Italian Winx Club website allowed the fans to vote for its title in an online poll, with the title Mystery of the Abyss (Il mistero degli abissi) being chosen. Winx Club: The Mystery Of The Abyss (Italian: Winx Club - Il mistero degli abissi) is an Italian CGI animated film, based on the hit television series Winx Club.
For the Winx there is not a minute to waste: how will they stop the plans of their enemies before it's too late? The answer is not simple: with a twist, Politea is preparing to seize power all to herself, betraying allies and polluting the. almost unbeatable! But none of them have come to terms with the true power of the Winx, the power of Love: Bloom is more determined than ever to win the magic Pearl before her enemies and save prince Sky captured by the Trix and imprisoned in the Ocean. The Winx Club is struggling with a terrible mystery that will make your heart beat faster! The archenemies of the Winx Club, the Trix witches, team up with the evil nymph Politea and find out that, to defeat the fairies once and for all and become invincible, it takes very little: a Pearl hidden in the Deep of the Infinite Ocean! As small as powerful, the Pearl of the Depth gives enormous powers to those who possess it! The team of the Dark Magic: Trix, Politea and Tritannus, not bad as group.