eOne Films

Now's your chance to win one of 10 sets of double passes to see the most buzzed-about movie of the summer, "The Mortal Instruments: City of Bones."

On August 15 at 7:00 p.m. ET, the red carpet will roll out for the Canadian premiere at Toronto's Scotiabank Theatre, and you can be there with one of your friends or family members. Some of the cast members (not yet revealed) will be in attendance on the red carpet. If you want to see the stars of the film, get there at 6:00 p.m. ET, which is when the red carpet will roll out.

In "The Mortal Instruments: City of Bones," the mother of a seemingly normal teenage girl, Clary (Lily Collins), is attacked and taken from their home in New York City by a demon. Clary goes on a journey to find her and eventually finds out truths about her past and bloodline. Those truths change her entire life. The movie co-stars Jamie Campbell-Bower, Robert Sheehan, Lena Headey, Kevin Zegers and Jared Harris.

In order to win a pair of double passes, just follow and re-tweet us @Moviefone for your chance to win! We'll be giving away 10 double passes, and you'll know the tweet when you see it.

This contest is open to Canadian residents ONLY.

"The Mortal Instruments: City of Bones" opens on August 21, 2013.

For the complete contest rules, click here.