Learn more On March 13, it's the perfect day for a new Frozen treat. Watch the new trailer for Frozen Fever only in theatres with Cinderella! Get tickets today: Source. Frozen Fever is an animated short sequel to the 2013 film, Frozen. The short was announced on September 2, 2014 as part of The Story of Frozen: Making a Disney Animated Classic. It featured "Making Today A Perfect Day", a new and original song written by Kristen Anderson-Lopez and Robert Lopez. Frozen Fever. 7 min2015AnimationU. It's Anna's birthday, and Elsa is determined to give her the best party ever. But Elsa's icy powers may put everything at risk. It's Anna's birthday, and Elsa is determined to give her the best party ever. During an infection, when our immune cells detect foreign invaders such as bacteria or viruses, they release fever-inducing chemicals called pyrogens. These chemicals travel to the brain, where Walt Disney Animation Studios' all-new short "Frozen Fever," which welcomes Anna, Elsa, Kristoff and Olaf back to the big screen, will open in theaters on March 13, 2015, in front of Disney goRjjLD.