"Let's just be honest, that's pretty surreal," Stone, 22, tells PEOPLE of going up against Jolie. "I don't know what I'm going to do when I see her in person. I'm going to freak out when I see anybody in person."
Stone got a best actress nod for her role in Easy A, and admits she became emotional after hearing the news.
"It's insane! I'm still coming to realization that I got nominated," Stone says. "I'm in the state of 'Oh, My God!' My mom and dad called and they were on speakerphone and said, 'We're proud of you,' and that was the best. I teared up."
She's looking forward to bonding with her good pal and fellow Globe nominee Jesse Eisenberg. "I can't wait to see him and hang out with him," she says. "I think Jesse is the greatest and he was unbelievable in The Social Network.
And who will be her date to the show? "My mom," says Stone. "I'm pretty excited about that. I would really like to bring my mom. She doesn't know yet. You can break the news!"
Next up, the actress will play the female lead in the upcoming Spider-Man prequel.