#4 COMIC CREATOR INPUT
Adi Granov is a comic book illustrator and actually co-designed the suits that you see in the first film. He’s credited as a “Suit consultant” for the movie and a “concept illustrator” for its sequel. While it doesn’t appear he is credited with constulting on the third film, he’s influence is still felt as the basis for Iron Man 3 partially comes from a story arc he drew with writer Warren Ellis titled “Extremis.” Another who helped is comic book illustrator Andy Park, who signed on as a concept artist for Marvel with their 2012 hit The Avengers and has gone on to work on each of their films since then including the upcoming Iron Man 3.