Thala!

X  aka Y gave a faked press conference at the White House gates on 29 September 2006, just one day before an official visit of Z's president. The Z government hired two Western public relations firms to counter Y's claims, running a four-page advertisement in The New York Times implicitly rebutting many of the claims made by Y.
Z has since changed their strategy by playing along, going so far as inviting Y to visit Z.

Johnny Depp, George Clooney and Steve Martin, all of whom are huge fans of X, contacted him about having a cameo in the movie. But X refused because it would have ruined some of the gags if they knew what was going on.