Yoko Ono doesn't see many parallels between today's celebrity war protesters and her late husband John Lennon's activism against the Vietnam War — but says that's because the times today are so different.
"I think there are many people who want world peace and want to address it by peaceful means," Ono told The Associated Press in a recent interview.
"I think that they are speaking out in different ways, it is not the time where you can just do a press conference about it," she said. "They are doing it through songs, doing it through charities."
Lennon's protests against the war more than 30 years ago earned him the scrutiny of the U.S. government, detailed in the 2006 film "The U.S. vs. John Lennon."
Ono, 74, told the AP the ex-Beatle's protests were "very effective in very many ways.
"He didn't think he was doing anything wrong, he was just giving some truth and justice," she said.
Ono said she believes that kind of spirit remains among today's artists, and she hopes the film may spark even more.
"I think there might be some kind of inspiration from this, inspiration and encouragement for people who are really trying to make the world a peaceful place," she said.
Ono also talked about her own release: a new album, "Yes, I'm a Witch," which she put out this year. She plans to perform songs from it at the upcoming South by Southwest music festival in Austin, Texas.
"Music is like life to me," she said. "I think indie music is the revolution of the day, and the future, and I'm part of it."