The stars came out to attend the Los Angeles premiere of creepy thriller flick, Zodiac.The movie stars Jake Gyllenhaal and Robert Downey Junior as two journalists who try to hunt down the real life Zodiac Killer who left cryptic clues as he went on a killing spree in the 1960s and 70s.The film is the latest offering from David Fincher who also directed Fight Club, Se7en and Alien 3.And when he approached Robert Downey Junior to take on the role as journalist, Paul Avery, it was an opportunity the actor could not turn down.He said: "Working with him on this film, you just felt like you were in very capable hands and you were a sponge and he was going to wring you out every day."Fincher could not attend the screening as he was in New Orleans filming his next project, The curious case of Benjamin Button, starring Brad Pitt.© Independent Television News Limited 2007. All rights reserved.