Lily Collins & Jamie Campbell Bower: "The Mortal Instruments" Promotional Fun

Lily Collins & Jamie Campbell Bower:

Taking care of some promotional duties, Lily Collins and Jamie Campbell Bower attended a book signing for their latest film The Mortal Instruments on Friday (August 2) in Philadelphia.

Stylish in black and red, the 24-year-old English beauty and her actor boyfriend took questions alongside author Cassandra Clare.

When asked by a reporter what makes Ms. Collins such a great actress, her smitten co-star turned to Lily and replied, When we were doing takes some times, I”d sort of just sit there and look at you. Maybe sometimes I”d forget – don”t roll your eyes at me like that – I”d forget that I was meant to be speaking. I love working with you and you are an amazing actress and I do feel honored when I get to go to work and work with you.”

Coming to theaters nationwide on August 21, The Mortal Instruments is officially described as follows: “When her mom is attacked and taken from their home in New York City by a demon, a seemingly ordinary teenage girl, Clary Fray, finds out truths about her past and bloodline on her quest to get her back that changes her entire life.”