There's actually a woman named Barbara Oppenheimer, and you can imagine the summer she's had.
People don't believe her when she tells them her name. She goes by Barbara these days, but was called Barbie when she was younger.
And her husband is related to J. Robert Oppenheimer, the so-called "father of the atomic bomb" who's the subject of the movie. (For the record, she's not related to Barbie or Ken.)
Has she seen both movies? Yes. She even owns a Barbenheimer t-shirt.