Hollywood rewriting history once more. As Carter said in a CNN interview regarding the film:
90% of the contributions to the ideas and the consummation of the plan was Canadian. And the movie gives almost full credit to the American CIA. And with that exception, the movie is very good. But Ben Affleck's character in the film was... only in Tehran a day and a half. And the main hero, in my opinion, was Ken Taylor, who was the Canadian ambassador who orchestrated the entire process.