Zach Galifianakis is kind of a muppet to begin with so it does make a certain amount of sense that he is going to be in the new, as yet untitled, Muppet movie.
Of all people, Robert Downey Jr. let the cat out of the bad when the two were doing press for their comedy Due Date, opening November 5. (Hey Downey, how about blurting out whether you’re really dropping out of Gravity or not?) I’m not sure that Galifanakis is irked that Downey spilled the beans in this manner To E!, or if the whole thing was set up between the two.
As of right now, the Untitled Muppet Film has been co-written and is set to star Jason Segal. Amy Adams, Rashida Jones and Chris Cooper are also confirmed for the cast. Cameras are expected to roll early next year when Segal goes on break from the sitcom How I Met Your Mother in which he co-stars.