Robert Downey Jr. was in tears when informed about Iron Man’s fate

Hollywood superstar Robert Downey Jr. had become overwhelmed with emotions when informed about the death of his Marvel Cinematic Universe character Iron Man.

Joe Russo, director of Avengers: Endgame, revealed in a new behind-the-scenes book called The Story of Marvel Studios: The Making of the Marvel Cinematic Universe,  the reaction Downy Jr. had regarding the death of Tony Stark aka Iron Man.

"When we started winding down the pitch, and getting to his death, Robert started crying,” Russo was quoted in the book penned by Tara Bennett and Paul Terry.

“And when we were done, he said, 'That's [expletive] awesome.' That's when we knew that we had to do it. Because he felt it."

"In a way, it's almost like a death in the family. When you're saying to someone, 'All these people you've loved and have hung out with for 10 years? That's all gonna go away because we want to tell a story a certain way,” he said.

His brother, and co-director of the film, Anthony Russo also said: "What we wanted to do is communicate the entire pitch to Robert, to sort of take his temperature on it, because he had so much creative ownership over the character.”

"We were like, 'If Robert gets this, if Robert feels this, then we know we're in a good place.'"