Kristen Bell as the voice of Anna and Josh Gad as Olaf are reprising their roles in an all-new story.
The film will be directed by Chris Buck and Jennifer Lee, who also helmed the original movie that has become a classic.
Peter Del Vecho is producing the project.
Chief creative officer of Disney's Pixar John Lasseter, Bell and Gad, both 36, shared with "Frozen" fans a behind- the-scenes video at the ongoing D23 expo here, showcasing the filmmakers' recent research trip to Norway, Finland and Iceland.
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Bell introduced fans to this new semi-sequel, while Gad surprised the crowd with a live performance of the all-new original song "That Time of Year", written by Elyssa Samsel and Kate Anderson from the featurette that will hit the theatres on November 22 this year.
Joining Bell and Gad in the "Olaf's Frozen Adventure" are Idina Menzel as the voice of Elsa and Jonathan Groff as Kristoff. The two are also reprising their roles in "Frozen 2".
The original film was released on November 27, 2013. It won two Academy Awards for the best animated feature and the best original song "Let It Go".
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