GOLDEN VALLEY, Minn.-- "The Mortal Instruments:City of Bones" is the latest fantasy series to make the jump from the page to the big screen.

This morning, our Bryan Piatt sat down with three of the film's stars--Lily Collins, Jamie Campbell Bower, and Kevin Zegers--to get a preview.

Based on the best sellingbook series by author Cassandra Clare, Collins playsClary Fray, aNew York City teenager who discoversthere's more to the world that what meets the normal eye.

"The Mortal Instruments: City of Bones" opens in theaters nationwide Wednesday, August 21. For details, click here.