The basic idea (making a sci-fi film as a cover for getting people out of Iran) is true, after that it's fairly heavily dramatised and pro-Americanised.
Worth saying that Affleck has always been relatively upfront about the dramatisation when asked about it in interviews, though I've not seen him asked about his depiction of the actions of the Canadian, British and New Zealand governments.
https://en.wikipedia.org/wiki/Argo_(2012_film)
The basic idea (making a sci-fi film as a cover for getting people out of Iran) is true, after that it's fairly heavily dramatised and pro-Americanised.
Worth saying that Affleck has always been relatively upfront about the dramatisation when asked about it in interviews, though I've not seen him asked about his depiction of the actions of the Canadian, British and New Zealand governments.