EXCLUSIVE: The Tropic Thunder gang is reuniting, this time on television. HBO has greenlighted Documental, a half-hour comedy pilot written and to be directed by Thunder co-writer/executive producer Justin Theroux. Theroux will star in the project with Thunder co-star, British comedian/writer/producer Steve Coogan. The two will executive produce with Thunder director/co-writer/producer Ben Stiller as well as Paul Simms, who serves as a consulting producer on the HBO comedy Bored to Death, and 3 Arts' Michael Rotenberg and Nick Frenkel.