The popular Toronto International Film Festival inaugurated its 37th edition in Toronto, Ontario, on September 6, opening with director Rian Johnson's Looper featuring Bruce Willis, Joseph Gordon-Levitt and Emily Blunt — who also co-stars in festival film Arthur Newman with Colin Firth, pictured below at the premiere looking dashing.

A broad slate of film, TV and music celebrities have been turning up for the prestigious event, which is scheduled to run for ten days and hosts 21 films. Among the films are Free Angela & All Political Prisoners by director Shola Lynch, whose premiere was attended by Will Smith, wife Jada Pinkett-Smith and children Jaden Smith and Willow Smith. Ewan McGregor and Naomi Watts (pictured below) promoted their tsunami drama The Impossible, while Chris Evans, Stephen Dorff, Ray Liotta, Christa Campbell, Michael Shannon and Winona Ryder were all there to support their film about a contract killer, The Iceman, also starring James Franco.

Pictured below, director Mira Nair, Kiefer Sutherland, Riz Ahmed and Kate Hudson — later joined by her husband, Muse frontman Matt Bellamy — were also there to promote their film The Reluctant Fundamentalist, which premiered at the Venice Film Festival earlier this summer. Helen Hunt, Olga Kurylenko (pictured at the top) and Rachel McAdams all opted for green for their respective premieres; Gwyneth Paltrow kept it simple in black; and Olivia Williams made a bold statement with red — and a boa.

View the slideshow here for pictures of Zac Efron, Dennis Quaid, Gerard Butler, Mark Ruffalo, Viggo Mortensen, Erin Cummings and more at the Toronto International Film Festival 2012.

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