She spoke about her past in interview with Entertainment Weekly, reports eonline.com.
"Nobody knows this about me. I dropped out of high school. I was not a hard worker. I was a terrible student. Eventually I got my adult diploma, but I did not graduate. And it wasn't that I just dropped out and never went back, at the end of the year I had too many absences to graduate," she said.
The two-time Oscar nominated actress was not a typical teen. "I would cut school and sit in my car, reading Shakespeare," she said.
But her passion for acting never wavered, and after starring in a 1998 Bay Area production of Romeo and Juliet, she auditioned for the prestigious Julliard School in New York City and was accepted at age 22.
"I got to Juilliard and I'd never been around literature like that," she recalls. "It completely opened me up," said the 37-year-old.