Jennifer Lawrence Wins Best Actress
At 22, this is Lawrence's first Oscar win and second nomination.
Lawrence was nominated for a Best Actress Oscar for 2010's "Winter's Bone."
Her Best Actress win completes Lawrence's huge year at the box office.
The low budget "Silver Linings Playbook" has earned $159.7 million worldwide while Suzanne Collins' film adaptation of "The Hunger Games" grossed nearly $700 million at theaters.
Next up for Lawrence is the next "Hunger Games" installment, "Catching Fire," due out in theaters this November.
The actress will work again with "Silver Linings Playbook" director David O. Russell on future film "The Ends of the Earth" which was just acquired by The Weinstein Company.
Watch Lawrence's fall to the stage and acceptance speech via NowThis News: