The film condenses decades of comic book history and character development into a single, focused narrative, prioritizing the immediate threat and team formation. Kirby’s comics, spanning various series and storylines, offer a richer and more nuanced portrayal of the characters, their individual journeys, and the vast Marvel Universe they inhabit.

While the film captures the essence of each hero, certain aspects differ from Kirby’s original portrayals. Iron Man takes a more central role, Captain America’s leadership style is slightly adjusted, and characters like Black Widow and Hawkeye receive expanded roles compared to their earlier comic book appearances. These adaptations aim to create a cohesive team dynamic and cater to a modern audience.