Walt Disney Studios is chipping a new `` Frozen '' film off the old block . On Wednesday , the studio announced that its blockbuster 2013 movie will soon have a miniature sequel in the animated short `` Frozen Fever . '' The film will reunite the award-winning creative team behind `` Frozen , '' including `` Let It Go '' songwriters Robert Lopez and Kristen Anderson-Lopez , and will bring the film 's central characters back to life . Inspired by the Hans Christian Andersen tale `` The Snow Queen , '' `` Frozen '' told the story of two sisters , Anna ( voiced by Kristen Bell ) and Elsa ( Idina Menzel ) , and how an impressive but isolating gift of Elsa 's almost came between them . When `` Frozen '' was released in November , critics praised it as a return to Disney 's prime , and the box office backed that up . Domestically , `` Frozen '' earned about $ 400 million and was the third highest-grossing film of 2013 . Disney 's new short , `` Frozen Fever , '' will focus on Anna 's birthday as her sister , Elsa , and rugged love interest Kristoff `` are determined to give her the best celebration ever . '' But , Disney 's statement warns , `` Elsa 's icy powers may put more than just the party at risk . '' Do n't worry , hug-loving snowman Olaf ( Josh Gad ) is returning for `` Frozen Fever '' too , and there 'll be a new song . `` Frozen Fever '' is expected to bow in the spring .
He plans to create a new ` ` ' '' ' short . ' ` ` Frozen Fever , '' it 'll reunite the central characters and the creative team . The short is slated to premiere in the spring .