Wired has the story of how the CIA used a fake science fiction movie to help some Americans escape from Iran:
He was stuck. For about a week, no one in Washington or Ottawa could invent a reason for anyone to be in Tehran. Then Mendez hit upon an unusual but strangely credible plan: He'd become Kevin Costa Harkins, an Irish film producer leading his preproduction crew through Iran to do some location scouting for a big-budget Hollywood epic. Mendez had contacts in Hollywood from past collaborations. (After all, they were in the same business of creating false realities.) And it wouldn't be surprising, Mendez thought, that a handful of eccentrics from Tinseltown might be oblivious to the political situation in revolutionary Iran. The Iranian government, incredibly, was trying to encourage international business in the country. They needed the hard currency, and a film production could mean millions of US dollars.