Toronto 2012: New-Found Fame Stressing 'Hunger Games' Jennifer Lawrence

“I don’t have a disguise yet, hence I don’t leave my house much. This is really depressing,” Lawrence told a TIFF presser for "Silver Linings Playbook," in which she stars opposite Bradley Cooper.

TORONTO -- Overnight fame for Jennifer Lawrence apparently has put no pressure on the young actress to follow up her hero role as Katniss Everdeen in The Hunger Games with an even bigger Hollywood role.

“I don’t really feel that much pressure. Either way, I’m going to get paid if I find a good movie or a bad one,” Lawrence told a press conference Sunday at Toronto International Film Festival for David O. Russell's Silver Linings Playbook, which had its world premiere here.

But newfound fame has her housebound and stressed.

“I don’t have a disguise yet, hence I don’t leave my house much," she said. "This is really depressing."

Ahead of shortly starting work on the Hunger Games sequel Catching Fire, Lawrence stars opposite Bradley Cooper in Silver Linings, the Weinstein Co. release about a bipolar man trying to regain his bearings.

The 21-year-old actress said the chance to work with director compelled her to join the project.

“He’s really my favorite director since I started watching movies," she said. "That was an easy decision. I really wanted to work with him,” Lawrence insisted.

Ditto for co-star Cooper, who similarly embraced the Russell project.

“My dream to become as an actor was to be in movies like this guy makes,” he told the Bell Lightbox audience.

Russell urged Cooper to take the role in Silver Linings, but mega-producer Harvey Weinstein rang to entice him as well.

Lawrence, on the other hand, came aboard late in the casting process.

“We had our choice of a lot of terrific actresses, and Jennifer came in at the eleventh hour and just stole it," Russell said Sunday. "She Skyped from her parents’ house in Louisville. We went, 'Oh my God, who’s this person?' We didn’t know she had all that in her."

For Lawrence, shifting from Hunger Games to the Silver Linings set after shooting had begun was daunting.

“I showed up, and we did the running, screaming scene,” she recalled, where her character runs up in a black coat and tells Cooper that she can’t give him a letter.

“We just jumped into it, like a 100 percent," she added. "But that’s kind of how it feels every single day."

The Toronto International Film Festival runs to September 16.