Ever since 'Argo' came out, Canadians have been critiquing the skewed portrayal of America's contribution to the daring Iran hostage rescue — and now we've got a former U.S. president on our side.

Jimmy Carter appeared Thursday on CNN's Piers Morgan Tonight and offered some fact checking for the Oscar-nominated film.

"Ninety per cent of the contributions to the ideas and consummation of the plan was Canadian, and the movie gives almost full credit to the American CIA," Carter told Morgan.

And if anyone would know, it's Carter. He was President in 1979 when the American embassy in Tehran was stormed by protesters and militants, taking 55 embassy workers hostage. Six diplomats managed to escape and were kept safe by the Canadian ambassador to Iran, Ken Taylor. 'Argo' dramatizes the "Canadian Caper" — the plot that helped the six Americans escape under the guise of a film team.

In 'Argo,' CIA agent Tony Mendez and other U.S. officials are shown as the ringleaders of the plan, but Carter said ambassador Taylor was the true hero of the tale.

Taylor himself has also criticized the movie's accuracy, recently saying the film's screenwriter "had no idea what he's talking about."

Star and director Ben Affleck even added a postscript to the film, after speaking to Taylor about his grievances, to clarify America's efforts:

"The involvement of the CIA complemented efforts of the Canadian embassy to free the six held in Tehran. To this day the story stands as an enduring model of international co-operation between governments."

However, issues with accuracy aside, Carter had high praise for the film.

"It's a great drama, and I hope it gets an Academy Award for best film because I think it deserves it," he told Morgan.

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  • Best Picture

    "Argo"

  • Best Picture

    "Lincoln"

  • Best Picture

    "Amour"

  • Best Picture

    "Zero Dark Thirty"

  • Best Picture

    "Silver Linings Playbook"

  • Best Picture

    "Les Miserables"

  • Best Picture

    "Life of Pi"

  • Best Picture

    "Django Unchained"

  • Best Picture

    "Beasts of the Southern Wild"

  • Best Actor

    Daniel Day-Lewis, "Lincoln"

  • Best Actor

    Bradley Cooper, "Silver Linings Playbook"

  • Best Actor

    Hugh Jackman, "Les Miserables"

  • Best Actor

    Denzel Washington, "Flight"

  • Best Actor

    Joaquin Phoenix, "The Master"

  • Best Actress

    Jennifer Lawrence, "Silver Linings Playbook"

  • Best Actress

    Jessica Chastain, "Zero Dark Thirty"

  • Best Actress

    Naomi Watts, "The Impossible"

  • Best Actress

    Quvenzhane Wallis, "Beasts of the Southern Wild"

  • Best Actress

    Emmanuelle Riva, "Amour"

  • Best Supporting Actor

    Tommy Lee Jones, "Lincoln"

  • Best Supporting Actor

    Robert De Niro, "Silver Linings Notebook"

  • Best Supporting Actor

    Philip Seymour Hoffman, "The Master"

  • Best Supporting Actor

    Alan Arkin, "Argo"

  • Best Supporting Actor

    Christoph Waltz, "Django Unchained"

  • Best Supporting Actress

    Anne Hathaway, "Les Miserables"

  • Best Supporting Actress

    Sally Field, "Lincoln"

  • Best Supporting Actress

    Helen Hunt, "The Sessions"

  • Best Supporting Actress

    Amy Adams, "The Master"

  • Best Supporting Actress

    Jacki Weaver, "Silver Linings Playbook"

  • Best Director

    Steven Spielberg, "Lincoln"

  • Best Director

    David O. Russell, "Silver Linings Playbook"

  • Best Director

    Ang Lee, "Life of Pi"

  • Best Director

    Michael Haneke, "Amour"

  • Best Director

    Behn Zeitlin, "Beasts of the Southern Wild"

  • Best Animated Feature Film

    "Brave"

  • Best Animated Feature Film

    "Frankenweenie"

  • Best Animated Feature Film

    "ParaNorman"

  • Best Animated Feature Film

    "The Pirates! Band of Misfits"

  • Best Animated Feature Film

    "Wreck-It Ralph"