Zach Galifianakis Will Cameo in Muppet Movie

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Zach Galifianakis, who has already engaged in a Muppet staring contest, will appear in the new Jason Segel and Amy Adams Pixar Muppet movie. Robert Downey Jr. accidentally broke the news while doing a Due Date interview with Galifianakis by saying, "So, you're doing a few days on the Muppets movie?" Cat, consider yourself out of the bag. The all-important question raised by this casting: Is there any human being on earth more like a Muppet than Galifianakis? [Pop Watch/EW]