Actress Kathy Griffin revealed over her Twitter account on Friday that she was filming a small role in The Muppets, which is due in theaters on November 23. Later that day she tweeted two photos from the set, which feature Billy Crystal, Ricky Gervais and the muppet Scooter. Click on these photos below to access our gallery:

Billy Crystal and Kathy Griffin on the set of <strong><em>The Muppets</em></strong>

Ricky Gervais, the muppet Scooter and Kathy Griffin on <strong><em>The Muppets</em></strong> set

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On vacation in Los Angeles, Walter, the world's biggest Muppet fan, and his friends Gary (Jason Segel) and Mary (Amy Adams) from Smalltown, USA, discover the nefarious plan of oilman Tex Richman (Chris Cooper) to raze the Muppet Theater and drill for the oil recently discovered beneath the Muppets' former stomping grounds. To stage The Greatest Muppet Telethon Ever and raise the $10 million needed to save the theater, Walter, Mary and Gary help Kermit reunite the Muppets, who have all gone their separate ways: Fozzie now performs with a Reno casino tribute band called the Moopets, Miss Piggy is a plus-size fashion editor at Vogue Paris, Animal is in a Santa Barbara clinic for anger management, and Gonzo is a high-powered plumbing magnate.