Happy Feet Two is a 2011 CGI-animated jukebox musical comedy film directed, produced and co-written by George Miller.

Elijah Wood, Robin Williams, Hugo Weaving, Magda Szubanski and Anthony LaPaglia reprise their roles from the first film, with Common and Alecia Moore (P!nk) replacing Fat Joe and Brittany Murphy (who died two years before the film release) respectively, and with Hank Azaria, Brad Pitt, Matt Damon, Sofia Vergara, and Richard Carter joining the cast.

In the film, young penguin Erik, who is reluctant to dance, runs away from home and encounters the Mighty Sven, a tufted puffin.

Meanwhile, Will, an adventurous and existentialist krill, is determined to discover life beyond the swarm, with his best friend, Bill, following him to ensure his safety.

While trying to cross an ice bridge, Bryan the elephant seal and his two sons refuse to let the penguins pass.

While Mumble, Erik and Atticus deliver their supply of fish to the stranded penguins, Bo returns to Adélie-Land to seek help.

The next morning, a large flock of skua attack the emperor penguins, and although Noah the Elder encourages them to fight back, all hope seems lost until Bo returns with Sven, who begins a cooperative effort to feed the emperor penguins by hunting fish.

Sven proves himself as a worthy dancer and leads the Adélies in a dance while Erik and Mumble go to seek Bryan's help.

The elephant seals travel en-masse to Emperor-Land, where Mumble, Gloria, Erik, the emperor penguins, the elephant seals, Will, Bill, their krill swarm and Sven work together to destroy the iceberg, after which Mumble and Erik reunite with Gloria.

Elijah Wood, Robin Williams, Magda Szubanski and Hugo Weaving reprised their previous roles as Mumble, Ramón, Lovelace, Ms. Viola and Noah.

Brittany Murphy, who originally voiced Mumble's love interest Gloria, was set to reprise her role and scheduled to begin recording sometime in 2010,[14] but died from pneumonia on December 20, 2009.

Steve Irwin, who voiced Trev the elephant seal and an albatross, died of a stingray injury on September 4, 2006.

[20] The film was released with an attached Computer Animation Looney Tunes short titled I Tawt I Taw a Puddy Tat.

[24] Thus, when adjusted for ticket price inflation, Happy Feet Two achieved less than 45% of the attendance figures of its predecessor.

The website's consensus reads: "The animation is as eye-popping as ever, but Happy Feet Two's narrative is too noisily incoherent to recapture the Oscar-winning charm of its predecessor.

He wrote, "The animation is bright and attractive, the music gives the characters something to do, but the movie has too much dialogue in the areas of philosophy and analysis.

The songs "Happy Feet Two Opening Medley", "Bridge of Light" and "Under Pressure/Rhythm Nation" are led by P!nk, who lends her vocals to the character Gloria, taking the place of Brittany Murphy from the first film.