Earlier quoted context omitted.
But fiction comes with a warning, specifically that it is fiction. You can fact check non-fiction but fiction is completely open about the fact that you should consider what it's saying to be suspect - the default position on it is "this is made up". The danger is - and Argo is one example but there are far, far worse (cough Dan Brown cough) - where you get fiction "based on true events". There are some lovely fictio…
How far was Argo from the facts?
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.