In the many "Iron Man" sequels that followed, however, the process of getting in and out of the suit became quicker and more streamlined. In one film, Tony thrusts his fists into a briefcase, and his suit stretches and assembles around him.

It’s been five years since fans saw Robert Downey Jr play Iron Man after the character’s tragic ending in 2019’s Avengers: Endgame, but more than his sacrifice was the satisfaction of being the one to close that chapter of the MCU – the one that Iron Man also helped jumpstart with.

Find out why cheeseburgers top the list as Robert Downey Jr.'s ultimate comfort food in the fast-paced Hollywood world.

The Marvel Studios had considered Tom Cruise to play Iron Man in the 2008 film. When Cruise refused, director Jon Favreau brought in Robert Downey Jr. and the rest is history.

Robert Downey Jr. was once Marvel's hail Mary, and it paid off, but now, the franchise is flailing without him.