Jack Kirby and Stan Lee invented Marvel's most beloved characters: Spider-Man, The Hulk, Iron Man, just to name a few. But was it Kirby's artwork or Lee's bravado and writing that started a revolution?

The Series Premiere of Robert Kirkman's Secret History of Comics explores the partnership that launched some of the world's most beloved fictional characters and turned a quiet publishing company into an entertainment juggernaut. But given that Lee and Kirby didn't always see eye to eye, was Marvel's success at the expense of their relationship?

Watch the latest episode now on amc.com and AMC apps for mobile and devices. 

Robert Kirkman's Secret History of Comics airs Mondays 10/9c.  To get more exclusive extras, sign up for the Robert Kirkman's Secret History of Comics Insiders Club.