Robert De Niro Brought to Tears Over Mental Illness on ‘Katie’ (Video)

Robert De Niro hinted at a very personal connection to what Bradley Cooper's character was going through in "Silver Linings Playbook"

Last Updated: February 4, 2013 @ 4:55 PM

Robert De Niro was brought to tears during Monday's episode of "Katie."

After listening to "Silver Linings Playbook" director David O. Russell discuss his son — who has a mood disorder similar to that of the character Bradley Cooper plays — and his impact on the film, Katie Couric asked De Niro if he felt any greater responsibility doing a film that his director had so much personally invested in.

Also read: Robert De Niro on Finding 'Silver Linings' in Mental Illness – but Not in Football

"Oh, of course," he answered before cutting himself off as his emotions began to show.

"I don't like to get emotional," he choked out. "But I know exactly what he's going through."

He didn't elaborate how, but Russell quickly jumped in to continue the conversation.

"When I first was in his apartment and I was talking to him about the screenplay, this is what happened," Russell explained as De Niro wiped his eyes. "I thought he was having hay fever and I realized he was having an emotional reaction. I sat there and I watched Robert De Niro cry for 10 minutes."

Watch the moment: