Attention comedy fans: Will Ferrell and Zach Galifianakis will be making an appearance at the National Constitution Center next Tuesday, July 31 at 11 a.m. to promote their new politically-charged comedy, The Campaign — an upcoming movie in which they play rival candidates fighting to win an election (click here to check out the trailer). No word if the duo will be in character or not, but we do know that they will be signing a copy of the Constitution during their trip to the NCC. And we also know that it will be hilarious. [National Constitution Center’s Twitter]