‘Anchorman 2′ Will Have “Secret” Cameos From Nicole Kidman, Vince Vaughn and Luke Wilson

'Anchorman 2' is going all out with its big-name additions to the cast, most notably including Harrison Ford as a legendary news anchor role. Now Nicole Kidman, of all people, has also joined the cast in a brief and uncredited role, and she's bringing two 'Anchorman' alums with her.

If you remember, Kidman popped up in Adam Sandler's 2011 flick 'Just Go With It,' and now she's returning to comedy for 'Anchorman 2,' along with returning stars Will Ferrell, Paul Rudd, Steve Carell, David Koechner and Christina Applegate. Though, as THR reports, her part is brief and uncredited.

In addition, though we've heard rumblings in the past, Vince Vaughn and Luke Wilson, who both played rival newsmen to Ferrell's Ron Burgundy in the first film, have shot small cameo parts for the flick -- though we don't know if you could really call those "secrets" at this point.

Directed by Adam McKay, 'Anchorman 2' will also feature Kristen Wiig, James Marsden, Greg Kinnear, Josh Lawson, John C. Reilly, Dylan Baker and Meagan Good, and is set to hit theaters December 20, 2013.