The 50-year-old actress shocked fans -- and her co-stars -- by apparently downing a pint of bourbon at the San Diego Comic-Con's panel for Kingsman: The Golden Circle on Thursday.
Berry plays Agent Ginger Ale in the upcoming Kingsman sequel, so ET's Kevin Frazier had to ask if it was really bourbon she was drinking.
"I'm a little drunk right now!" she joked on the red carpet post-panel. "No, just kidding!...I never drink and tell! Let that be a mystery to the world."
"Never dare a girl like me to do anything," she added. "Because I just take the challenge."
Berry said it was also a challenge to play Ginger Ale in the film -- and not just because she "prefers bourbon."
"She's the mind of this, at least right now," she explained. "I can't say I've always chosen to be that [type of cerebral character], so it was a departure from what I usually do."
"Ginger does her thing, but [I'm] not necessarily beating butts [in this movie]," she continued. "The stunts were really crazy! I mean, I haven't seen things like this in a movie before. [Director] Matthew Vaughn has really pushed the envelope and gone really far forward with some of the things you see in the movie."
The mother of two certainly wasn't dressed for beating butts on Thursday either -- as she showed up to the event wearing two different heels!
"I just couldn't make up my mind this morning, so I thought, 'You know what? I'm going to wear one of each!'" she explained. "How about that?"
See Berry in the new Kingsman: The Golden Circle trailer in the video below.