REUTER LATINA, CHISMOSEANDO) Robert Downey Jr.. On Sunday recorded his second success of box office so far this summer, after his film "Tropic Thunder" put an end to the reign of "The Dark Knight" and be placed in the first place most of the films seen in North America. "Tropic Thunder," which also counts with the participation of Ben Stiller and Jack Black, is a tape that mixes comedy with fighting, and raised $ 26 million during its first weekend in theaters United States and Canada. According to data from its distributor, Paramount Pictures, the film gains accumulated approximately $ 37 million since its premiere on Wednesday. Paramount, Viacom Inc., was also responsible for distributing the previous box office success of Downey, the drama superhero "Iron Man," which raised nearly $ 99 million in its first weekend in cinemas, last May. In "Tropic Thunder," Downey, Stiller and Black represent a group of self-centered Hollywood actors who are involved in a confrontation in real life with a group of drug traffickers while filmed a movie terrorist war in Southeast Asia. The film was directed, and coproduced by co written Stiller. Following the success of the film, the sequel to Batman, "The Dark Knight," fell to second place box office with $ 16.8 million raised in ticket sales during its fifth weekend in theaters.