LOS ANGELES (KABC) --Will Smith says he will not attend the Academy Awards, joining his wife, Jada Pinkett Smith, and others in protest against two straight years of all-white acting nominees.
Smith, 47, spoke to "Good Morning America" co-anchor Robin Roberts on Thursday about issues surrounding Hollywood and diversity.
He said he and his wife discussed the matter and feel "we're uncomfortable to stand there and say this is OK."
Some thought Smith might be nominated for his performance in the football drama "Concussion," but he was not. Smith would likely have been a sought-after presenter at the Feb. 28 show.
He had been nominated twice before, for 2001's "Ali" and 2006's "The Pursuit of Happyness."
Pinkett Smith on Monday said she wouldn't attend or watch the Oscars ceremony. A video she posted helped prompt calls for a boycott of the awards show.
Pinkett Smith on Tuesday thanked the Academy of Motion Picture Arts and Sciences and its president for promptly responding to the outcry.
Academy President Cheryl Boone Isaacs has pledged "dramatic changes" to diversify the academy's membership.
MORE: Academy President speaks out about Oscars' "lack of inclusion"
Smith says he was out of the country when his wife announced on social media that she would be skipping this year's Oscars but supports her all the way.
"She's deeply passionate and when she is moved she has to go," Smith said. "I heard her words and I was knocked over. I was happy to be married to that woman."
"There is a position that we hold in this community, and if we're not part of the solution, we're part of the problem," he added. "It was her call to action, for herself, and for me and for our family to be a part of the solution."
"At this point, the Academy is 94 percent Caucasian and 77 percent male," Smith said of the group that decides Oscar nominees. "It's just difficult to get a diverse cultural sampling from that group."
Smith said the film industry is a reflection of what's happening in America - as the nation deals with serious challenges.
"There is a regressive slide towards separatism, towards racial and religious disharmony and that's not the Hollywood that I want to leave behind."
Director Spike Lee has also said he would not be attending the Oscars this year. He said on "Good Morning America" on Wednesday that he is going instead to a New York Knicks basketball game.
MORE: Spike Lee says he'll be at Knicks game on Oscar night
Several stars, including George Clooney and Lupita Nyong'o, have also spoken out about the lack of diversity in nominees.
After Pinkett Smith posted video to Facebook saying she wouldn't be attending the Oscars, actress Janet Hubert, who co-starred with Smith on "The Fresh Prince of Bel-Air," slammed the couple on a Facebook video of her own.
MORE: "Fresh Prince" aunt slams Will Smith, Jada Pinkett Smith over Oscars boycott
The couple has not responded to Hubert's rant.
Smith says he believes his wife's decision to not attend this year's Oscars is bigger than just a disappointment that Smith did not receive a nomination for his role in "Concussion."
"There's probably a part of that in there but, for Jada, had I been nominated and no other people of color were, she would have made the video anyway," Smith said. "We'd still be here having this conversation. This is so deeply not about me."
ABC News and the Associated Press contributed to this report.