The video sees John Goodman and Alan Arkin discussing their roles in the political thriller, the story of which is divided between mid-revolution Iran and 1970s Hollywood.
Goodman and Arkin both feature on the Hollywood side, playing legendary real-life make-up artist John Chambers and fictional studio exec Lester Siegel respectively.
"He was a very creative and inventive make-up man who also did a lot of work for the CIA," Goodman explained of his character. "He was the man that Tony Mendez (Ben Affleck) went to with... what amounted to the best of a lot of bad ideas - creating a fake movie."
The film is based on a real CIA plot to smuggle six US embassy workers out of Iran during the revolution, by creating fake identities for them as members of a science fiction film crew.
"I play a composite of several people all melded into one, and hopefully you don't see the seams," Arkin muses of Siegel, who assists Mendez and Chambers in their pesudo-movie mission.
> 'Argo' John Goodman: 'Ben Affleck is such a smart director'
> 'Argo': Ben Affleck heads to Iran in new TV spots
Argo will be released in the UK on November 7.
Watch the cast of Argo, including Ben Affleck, Bryan Cranston and John Goodman, discussing the film with Digital Spy below:
Photo gallery - 'Argo' BFI London Film Festival premiere:
Copyright: PA Images Ian West/PA Wire