The part about his name begins at about 7:37.
"And this is how you know they were named after me. My name is not pronounced Děn-ZĚL," Washington said of the name the way moviegoers know it. He added, "My name is pronounced DĚN-zǝl," emphasizing the first syllable and pronouncing the second syllable so that it rhymed with "lull."
Wait, what?!
"I'm Denzel Jr.," the actor continued, pronouncing it the way it had been intended. "My father's Denzel Hayes Washington Sr. I'm Denzel Hayes Washington Jr. My mother would say, 'Denzel,' and we'd both show up."