A premiere for the second Hobbit film by Peter Jackson

The cast of the Hobbit 2 attended the premiere of the second film on Monday night.

The film called "The Hobbit: The Desolation of Smaug," held their world premiere in Los Angeles, California on Monday.

This instalment will be the first time fans get to see director Peter Jackson's interpretation of the dragon Smaug.

Actors Benedict Cumberbatch, Orlando Bloom and Martin Freeman discussed why they thought a trilogy needed to be made.