updated 02/25/2013 AT 1:00 AM ET
•originally published 02/25/2013 AT 8:00 AM ET
The Silver Linings Playbook star, 22, took a little fall on her way up to accept her statuette.
“Look at my dress!” she told reporters backstage after the show, of her Christian Dior Couture gown. “I tried to walk upstairs in this dress. That’s what happened. I think I stepped on the fabric and they waxed the stairs.”
There wasn’t too much going through her head at the time of the tumble except “a bad word that starts with ‘F’,” she said with a laugh.