Matthew Reeve spoke about his father at the Sundance screening of a documentary about Christopher Reeve.

“So, that’s always stuck with me,” he said.

Christopher quickly turned serious, extolling the virtue of films that challenge viewers to better understand the world.

Christopher Reeve appears on stage at the 68th Annual Academy Awards in Los Angeles 25 March. This is his first public appearance before the Hollywood community since his equestrian accident in Virginia left his paralyzed.

Christopher Reeve at the Academy Awards in 1996.TIM CLARY/AFP via Getty Images

“When I was a kid, my friends and I went to the movies just for fun.

But then we saw[Stanley] Kubrick’sDr.

Strangeloveand started thinking about the madness of nuclear destruction,” he said in ‘96.

The movie also features interviews withSusan Sarandon,Jeff Daniels,Glenn Close, andWhoopi Goldberg.