"The Perks of Being a Wallflower" will be in theaters tomorrow.

Fans are dying to see Emma Watson outside of her "Harry Potter" element. Many are also in love with the YA book that the film was created from.

"The Perks of Being a Wallflower" by Stephen Chbosky was published in February 1999 by MTV Books.

The book is described:

Standing on the fringes of life...offers a unique perspective. But there comes a time to see what it looks like from the dance floor.

This haunting novel about the dilemma of passivity vs. passion marks the stunning debut of a provocative new voice in contemporary fiction: The Perks of Being a Wallflower.

This is the story of what it's like to grow up in high school. More intimate than a diary, Charlie's letters are singular and unique, hilarious and devastating. We may not know where he lives. We may not know to whom he is writing. All we know is the world he shares. Caught between trying to live his life and trying to run from it puts him on a strange course through uncharted territory. The world of first dates and mixed tapes, family dramas and new friends. The world of sex, drugs, and The Rocky Horror Picture Show, when all one requires is that perfect song on that perfect drive to feel infinite.

Through Charlie, Stephen Chbosky has created a deeply affecting coming-of-age story, a powerful novel that will spirit you back to those wild and poignant roller coaster days known as growing up.

Watson, 22, plays Sam, "a free-spirited but troubled American teenager in 80s-era Pittsburgh who becomes the object of affection of an introverted high schooler (Logan Lerman) wrestling with his own inner demons," described by NBCChicago. Sam has also been the victim of abuse.

"I'm excited about it because I'm so proud of the movie," Watson says. "It's got so much heart. It's so funny, and it feels very real. And, yeah, I'm just excited for people to see me do something different!"

"I mean, obviously it's a very different tone and a very different subject matter to 'Harry Potter'," she says. "But I just fell in love with the role, and I fell in love with Steve. And so, yeah, I don't know - it's really weird. I just instinctually knew when I finished ["Deathly Hallows, Part 2"] I was going to do this one. And I don't know why. I couldn't reason it particularly."

Watson's co-stars play interesting characters in their own way. Patrick (played by Ezra Miller) is gay and Charlie (Lerman) is a troubled and lonely high school freshman.

The movie is already earning rave reviews. So will there be a second film?

"I've thought about it," writer-director Chbosky revealed at the premiere of the film, according to E! Online. "And I'll tell you, honest truth, not in terms of the book, but I love these kids so much that I kind of want to bring them together one more time."

"I think it was probably more stressful because I felt so connected and it was so personal," Chbosky told E! about adapting his own material (he wrote the book the movie is based on). "It's such a personal story to me and I knew what it meant for the fans, so I would have been very, very sad if I messed it up."

Fans are sure he didn't and would want to see another film of course!

Chbosky revealed that he will be writing a horror novel in vein of Stephen King that he will also adap to the big screen. He doesn't know who will play the roles.

"I like to write characters first," Chbosky explained about whether he was writing with any actors in mind. "And then find the perfect people to play them."

"The Perks of Being a Wallflower" hits U.S. theaters Sept. 21.

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