Iron Man served as one of the leaders of the Infinity Saga of the Marvel Cinematic Universe,

and unlike many other superheroes who do their best to keep their identities a secret, Tony Stark revealed that

Iron Man was in his first movie - but why? The MCU has become the most comprehensive superhero universe ever, and it all started with Jon Favreau's Iron Man in 2008, which starred Robert Downey Jr. as Tony Stark.

At the end of Iron Man, Tony is getting ready for a press conference to address "an incident at Stark Industries" in which the arc reactor that powered the building was overloaded and Obadiah Stan (Jeff Bridges) in it. He was killed when he fell.

Of course, revealing that he was Iron Man brought both good and bad things to Tony's life:

That big revelation caught the attention of Nick Fury, who recruited him for the Avenger Initiative,

But it also made him the target of a variety of enemies who also went after those closest to him, such as Pepper Potts, Happy Hogan, and Roddy.

Tony's ego made way for one of the most iconic and important scenes in the MCU,

And this pivotal moment in Iron Man's life was later featured in Avengers: Endgame, giving him a satisfying and emotional ending.