Its thrilling rendition of real life events saw it win a best picture Oscar.
But Ben Affleck has to patiently explain to Bill Hader that Iranian Hostage Crisis film Argo was in fact a true story in an hilarious new Saturday Night Live promo clip.
The star is presenting the show's series finale at the weekend, and he was no doubt delighted to be paired with the show's departing favourite for his reel.
Trying his patience: Bill Hader wanted to know how Ben Affleck dreamed up the Argo storyline in an hilarious new SNL promo
However Bill was soon comedically trying his patience, saying: 'Just saw Argo. Wow man, where did you get the idea for that?'
When Ben explains it all really happened, he is pressed further on what parts of the plot were embellished.
Bill says: 'But you made up the country right, Iran? How'd you come up with that?'
When he explains it is in fact a real place, his cohort replies, 'I think you mean Iraq.'
The Superbad star does seem to get one guess right, as when he asks about his facial hair, grizzly Ben says, 'The beard is fake. Yes.'
Delighted Bill fires back: 'I knew it. Man, Hollywood!'
Gentle Ben: The disappointed actor and director explained the events had all really happened
What a clown: The star loved hamming it up as the pair gave a serviceable comedy performance
Their conversation is slightly ironic, as it does not address criticisms the film has received for historical inaccuracies relating to the rescue of six escapees after Iranians stormed the United States embassy in Tehran in 1979.
It was especially chastised for minimising the role the Canadian embassy played in the rescue and for falsely claiming the American refugees were turned away by the British and New Zealand embassies.
Bill's appearance came after it emerged he is leaving the iconic, if declining, sketch comedy show.
Revealingly the 35-year-old, who has appeared on eight series of the programme, said: 'It was a hard decision, but it has to happen at some point. It got to a point where I said, "Maybe it’s just time to go."'
Loving it: Ben was so pleased to be appearing in the spot he wore a wonderful tartan shirt
Goodbye but not farewell: Bill was making a rare appearance on a promo spot to tie in with his departure
No Argo-ments: The film was a worthy winner of the Academy Award for best picture in a weak year