|Elijah Wood and Brittany Murphy|
Speaking at the UK launch of the Warner Bros. film, he told BANG Showbiz: "I worked very closely with Brittany Murphy on the first movie. We'd all had time to accept her passing and emotionally deal with it by the time we started recording this film, but it was extremely sad."
However, the 30-year-old actor thought her replacement Pink – whose real name is Alecia Moore – was "great" in the film, especially considering it was her first ever movie role.
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Robin Williams – who reprised his double role of penguins Ramon and Lovelace in the motion picture – also felt "sad" about filming the sequel without Brittany.
Robin explained: "It was sad recording without Brittany Murphy. My last vivid memory of her was the 'Happy Feet' premiere in London when she sang, it was so beautiful. She was live and her voice was so exquisite. So when she died it was like, 'Oh dude'."
Here's the trailer for the movie: