DreamWorks Studios has unveiled trailer for Tropic Thunder (2008). In the action-comedy "Tropic Thunder," Ben Stiller plays pampered action superstar Tugg Speedman, who is cast in the biggest, most expensive war movie ever produced. He sets out to Southeast Asia with a "Who's Who" of celebrity co-stars. They include Kirk Lazarus (Robert Downey Jr.), an intense, three-time Oscar-winning actor; Jeff Portnoy (Jack Black), star of the popular gross-out comedy franchise "The Fatties"; multi-platinum hip-hop-star-turned-entrepreneur-t... ( more ). Watch trailer now!