The ABC News correspondent and his two siblings all appear in the new documentary 'Super/Man: The Christopher Reeve Story'

It matters to show that it was hard sometimes but that there was overwhelming joy at the same time,” Alexandra Reeve said during the Q&A following the Sundance screening, as the Deseret News previously reported.

Filmmakers Peter Ettedgui and Ian Bonhôte take IndieWire through the emotional creation of their "Super/Man: The Christopher Reeve Story," which brings the real-life superhero back to vivid life.

Christopher Reeve's oldest son Matthew Reeve tells PEOPLE at the New York City premiere of the documentary 'Super/Man: The Christopher Reeve Story' that his mother Gae Exton "is incredibly brave to tell her side of the story" of their family's history in the new movie.

Reeve's three children, Alexandra Reeve, Matthew Reeve, and Will Reeve, an ABC News correspondent, told "Good Morning America" on Wednesday at the premiere that the film is a tribute to their father's legacy and the lasting impact he had on who they are today.

Christopher Reeve's children and the film's directors talk about the actor and advocate 20 years after his death.

Armed with home videos and interviews with Reeve's family and closest friends, "Super/Man: The Christopher Reeve Story" gives a powerful and honest look at the man who played a hero, and then became one after a devastating horse-riding accident left him paralyzed nearly 30 years ago.

Christopher Reeve is the perfect Clark Kent / Superman, and no matter how hard any actor tries, no one will be able to bring to the character what Reeve brought to him. It was truly something special,

The Christopher Reeve Story,' which tackles the actor's life before and after his accident.

Will Reeve, the youngest son of Christopher Reeve, revealed the promise he made to his father on his deathbed in 2004, when he was just 12 years old. The post Son of Christopher Reeve, the “Superman,” reveals promise made to father on his deathbed appeared first on Instafamosos.