Washington was the subject of a phony story earlier this year that falsely claimed he was switching his support of then-Democratic presidential nominee Hillary Clinton to GOP White House hopeful Donald Trump.
One of the effects of "too much information," the 61-year-old Oscar winner says, is "the need to be first, not even to be true anymore."
"So what a responsibility you all have — to tell the truth," Washington exclaimed to the pack of reporters gathered on the red carpet.
"In our society, now it's just first — who cares, get it out there. We don't care who it hurts. We don't care who we destroy. We don't care if it's true," Washington continued.
"Just say it, sell it. Anything you practice you'll get good at — including BS."