Get up to speed on gamma rays, the radiation responsible for creating the Red Hulk in Captain America: Brave New World.

Marvel's new teenage Hulk is rewriting the rules of gamma strength, with superhuman abilities that scale with time instead of rage.

Brave New World' premiere and explains what it was like incorporate characters from 'The Incredible Hulk' into his new film. Plus, he expresses his gratitude to the firemen who have kept Los Angeles ...