Pitt and Damon will both be voicing characters in Miller’s Happy Feet 2, a 3-D sequel to his 2006 animated film. They’ll be joining original cast members who include Robin Williams and Elijah Wood....says Movieline HERE. [SPOILER!] I still get completely tripped out by the reveal of the humans in HAPPY FEET - gives me goosebumps every time. Wonder what music they're adapting this time around, or if they'll go some completely different direction?