The document summarizes the opening sequence of the 2008 film "Tropic Thunder". The opening scenes depict an intense battle scene being filmed for the movie the characters are starring in. As filming continues, the director disappears and the actors begin to argue. The opening establishes the Vietnam War setting and introduces the main characters, including Kirk Lazarus, Jeff Portnoy, and Tugg Speedman, through close-ups and reaction shots during the intense battle footage.