The trailer for the latest Jim Carrey comedy, Yes Man, is now available online via Yahoo! Movies. In addition to Carrey, the film also stars Zooey Deschanel, Terence Stamp and Bradley Cooper. Yes Man centers around a man who decides to answer "Yes" to everything he is asked and it's due in theatres on December 19th. Carrey is also starring alongside Ewan McGreggor in the upcoming comedy, I Love You Phillip Morris, which will hit theatres in February 2009.