Emma Watson, Ezra Miller party for 'Perks of Being A Wallflower'

For the young cast of "Perks of Being a Wallflower," fringe benefits were plenty Monday night in Los Angeles, where a red carpet and screening was held at the Cinerama Dome.

Nestled in front of the Arclight Hollywood, star Emma Watson stunned with slicked-back hair and a nude Armani gown a nice nod to her own evolution from 'Harry Potter" darling to grown-up star.

A little, shall we say, more liberated in his look: the scene-stealing Ezra Miller rocking wild hair, drawstring pajama pants and an oversized khaki blazer.

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Both young stars were without their lead, Logan Lerman, busy supporting the film at the Toronto International Film Festival, but represented him in spirit by dragging a cardboard cutout of Lerman down the red carpet.

After the screening, nightspot Lure opened its doors to Watson, Miller and several ensemble members like Nina Dobrev, Johnny Simmons and Mae Whitman.

Two notable young Hollywood stars attended the festivities but seemed much more taken with Ezra than the coming-of-age drama: Shailene Woodley and Rumer Willis.

Shailene, of last year's awards hit "The Descendents," rolled into the party with a faded Jansport backpack on her shoulder (perhaps a nod to the high-school-set film?) and chatted up Miller with enthusiasm, even coaxing him to dance at one point.

Later on Rumer, in a floor-length dress with a lace detail, enjoyed a lengthy conversation with Miller at a dinner table.

Not to be outdone, the film's adults presented a united front: Dylan McDermott and Kate Walsh, who play Lerman's on-screen parents, sat at adjoining tables and chatted with cast and crew close to midnight.