'The Mortal Instruments: City of Bones' Hollywood Premiere: See Cast in their Fashionable Ensembles [PHOTOS]

The "Shadowhunters" of the beloved film adaptation of "The Mortal Instruments: City of Bones" swapped their black suits and boots for something more fashionable for the premiere of the film. Lily Collins along with Kevin Zegers, Robert Sheehan and Jamie Campbell Bower stunned in their attires for the Hollywood premiere of the film at the ArcLight Cinemas Cinerama Dome last night.

Finally, "The Mortal Instruments: City of Bones" had its Hollywood Premiere last night. Director Harald Zwart along with the film stars, Lily Collins, Jamie Campbell Bower, Robert Sheehan, Kevin Zegers and Godfrey Gao attended the film premiere. Author Cassandra Clare was also present at the premiere.

Lily Collins, who plays Clary Fray in the film, stepped out in her sexiest premiere dress to date. Collins wore a cutout ivory leather dress by Cushnie et Ochs Resort 2014 where it revealed her toned midriff and cleavage. Lily paired off her dress with H. Stern jewels and ivory Giuseppe Zanotti pumps. This sexy number was definitely enough to capture the attention of her co-star, Jamie Campbell Bower.

On the other hand, Jamie Campbell Bower ditched the black suit and tie for a blue suit by Alexander McQueen. Proving that he is anything but boring on the red carpet, Jamie's three-piece blue suit was paired off with a white dress shirt, an ornate gunmetal pendant necklace and black lace up shoes.

Robert Sheehan, who plays Simon Lewis in the film, was also one to wow the crowd. The 25-year-old Irish actor donned the printed suit by Dent de Man Spring 2014. The chocolate and aqua paisley print suit and trousers were the perfect fit for Sheehan.

Check out the slideshow to see more of the "The Mortal Instruments" cast in their fashionable ensembles.