The film, based on the acclaimed young adult novel by Stephen Chbosky, tells the story of an introverted high school freshman who is taken under the wing of two eccentric seniors. It stars Emma Watson, Logan Lerman, and Ezra Miller.
Chbosky has made his film debut by also writing and directing the upcoming film, which also features Paul Rudd and Kate Walsh.
'The Perks of Being a Wallflower' trailer:
The two-minute clip posted by MTV features footage of Watson in her first major lead role since the Harry Potter movies.
Watson will next be seen in Sofia Coppola's upcoming The Bling Ring.
The Perks of Being a Wallflower is due in cinemas on September 14 in the US, with a UK release date to be confirmed.