"The Descendants" took home a handful of awards from the Independent Spirit Awards on Saturday afternoon, but none of the winners were more enthused about the honor than first-time nominee Shailene Woodley. The "Secret Life of the American Teenager" star has been rewarded repeatedly for her emotional turn as the teenage daughter of George Clooney's character in the Alexander Payne-directed flick, and the 20-year-old continued that trend Saturday, winning Best Supporting Actress.

Sunday night's Academy Awards marks the last major awards show of the season for Woodley and her "Descendants" castmates. On the red carpet before the Spirit Awards, the young actress told MTV News that ending her time with her co-stars is "so bittersweet."

"Tomorrow's the grand finale. It's awesome, because I'll be able to have clean socks and do laundry for the first time in a few months, but it is sad because every single night has been this beautiful little reunion of people, and tomorrow's the last reunion," she explained.

At least the reunions will go out with a bang, since the entire cast, including Clooney, is expected to attend the Oscars. Even though they won't continue to see each other on the awards circuit this year, Woodley expects she and her castmates will stay in touch.

If Clooney falls out of contact, Woodley promised, "I will track him down and say, 'Keep teaching me, because I haven't learned enough yet!' "

The actress has made quite a splash on the red carpet while doing rounds for "The Descendants," and she said her Oscar-night dress is ready to go. Picking out the perfect outfit hasn't been something to stress about — as she said, that's what stylists are for.

"I do have a dress. It hasn't been that big of a process because I know nothing about fashion," Woodley said. "I have an awesome stylist who does know a lot about fashion, and so I'm sure she would say it's been a big process, but for me, it's been very simple."

The MTV Movies team has the 2012 Oscars covered! Stick with us for everything you need to know leading up to the awards show, and on Sunday, February 26, tune into MTV.com at 5 p.m. ET for our two-and-a-half-hour red-carpet live stream and updates on the night's big winners. To join the live conversation, tweet @MTVNews with the hashtag #Oscars.