Thanos is simply larger than life.Director James Gunn had a dilemma on bringing Thanos for an appearance in “Guardians of the Galaxy.” With Ronan the Accuser being the Guardians’ primary adversary, Thanos shouldn’t overshadow the villainous role in the film.“You’re setting up this gigantic character that, in one way, isn’t really a part of your movie,” he explained to Vulture.