Every Hulk Movie Leaves Out the Grossest Part of His Origin Story

screenrant.com:

While fans of the Hulk may feel that they understand his powers, the disgusting truth of his origin shows that Bruce Banner has more secrets than his movie adaptations are willing to admit. First appearing in 1962's The Incredible Hulk #1, Bruce Banner's gamma exposure turned him into what Marvel branded «the strangest man of all time!!» It's Hulk's origin that shows how true this boast was.

While Marvel has explored and expanded on the lore surrounding gamma mutation — recently linking it to the cosmic being known as the One-Below-All — Hulk's original adventures came up with the rules of his transformation on the fly. Bruce Banner would transform into the Hulk at night and regain human form during the day, later triggering his changes via a gamma ray before finally settling into the modern status quo, where strong emotions prompt him to «Hulk out.» However, in these early days, it wasn't just the method of transformation that was unpredictable.

Related: Ultron's Hulk Form Betrayed His Entire Reason for Being

While Hulk has always been strong and tough, his powers were originally far less consistent. Hulk's body would respond to threats in new ways, with his monstrous form and warped personality offering up countless surprises. In the first six issues from Stan Lee, Jack Kirby, and Steve Ditko, Hulk is rendered super-suggestible, switches personalities and colors, and even transforms everything but his head. The idea of Hulk as a brute who gets stronger with rage wasn't yet established, and the stories focus on the disturbing idea of awakening a monstrous and truly unpredictable inner self. These body-horror powers remain a part of Marvel continuity, and are best explained by Bruce Banner in New Avengers: Ultron Forever