People magazine has named Sandra Bullock as the "World's Most Beautiful Woman" for 2015.

The 50-year-old actress, who voices a supervillain in the upcoming movie "Minions," tops the magazine's list, announced Wednesday.

Commenting on being selected for this year's cover, Bullock says she just laughed when she heard about the honor. "No, really. I just said, 'That's ridiculous,'" she tells the magazine. "I've told no one."

Despite her long roster of accomplishments, the role that Bullock cherishes the most is being a mom to her 5-year-old son, Louis.

"Real beauty is quiet. Especially in this town, it's just so hard not to say, 'Oh, I need to look like that,'" she told the magazine. "No, be a good person, be a good mom, do a good job with the lunch, let someone cut in front of you who looks like they're in a bigger hurry. The people I find most beautiful are the ones who aren't trying."

The Associated Press contributed to this report.