Zodiac is a 2007 American mystery-thriller film directed by David Fincher. The screenplay by James Vanderbilt is based on the 1986 non-fiction book of the same name by Robert Graysmith. The film stars Jake Gyllenhaal, Mark Ruffalo, and Robert Downey, Jr., with Anthony Edwards, Brian Cox, Elias Koteas, Donal Logue, John Carroll Lynch, Dermot Mulroney and Chloë Sevigny in supporting roles. Wikipedia
Paul Avery: Okay, this can no longer be ignored. (points at Graysmith's drink, which is blue. Graysmith looks confused) Paul Avery: What is that?