Marvel Comics was established in 1938, although, the brand was named Marvel Comics much later. However, with eight decades of comic books and a mind-boggling inventory comprising a repertoire of characters to pick from, the Marvel Studios converted their almost obscure properties into one of the biggest movie franchises ever. The MCU is a whirlwind that keeps shattering records at the box office with unmatched consistency. After ten years and twenty movies of stupendous success, the Marvel Cinematic Universe is still expanding by introducing new characters, locations, and stories that have been dear to the fans for a long time.
Generally, the Marvel Studios ensure that their movies don’t venture far away from the source material that inspires them. Even though they have been written decades back, most of the time, these stories are able to keep their original theme, storyline, and characters. However, it is not as if everything is directly picked up from the comic books. There are times when despite striving to make comic book accurate movie versions of their best comic books, but, changes are not absolutely ruled out.
Stories get updated and revamped. At times there are minor changes, but, sometimes the changes could be the real game changers. If we talk to the fans of the superhero genre, they would explain that the Marvel Cinematic Universe is undoubtedly the best live-action portrayal of superhero comics despite all its mistakes.
There are times that the directors have to make some changes. Some of them are basic such as the modification of the Iron-Man armor, and at times they are major such as the time they turned The Mandarin into Trevor the Actor.