Things don't turn out so well for Jon Favreau's character Happy Hogan in this slightly different version of his meeting with an Extremis-powered henchman in Iron Man 3. In fact, the third installment of the Iron Man franchise could have proved fatal to Happy.

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These storyboards, drawn by Daniel Sweetman, are very similar to the final scene. But the biggest difference comes with these words in reference to Happy: "...closes his eyes and dies." In this version, he doesn't pass out; he doesn't appear to die. He dies.

It's not clear from the storyboards alone how strong a possibility Happy's death was, but it looks like it was at least considered. If Happy had died, it certainly would have added some heat to Tony's anti-Mandarin rage.

Iron Man 3 Storyboards [Daniel Sweetman via Comic Book Movie]