The movie seems to have a go at everything associated with filmmaking, beginning with the overblown promotional campaigns that try to convince audiences every movie is destined for awards, right through to the actual film itself—a bizarre combination of “Platoon” (1986), “Predator” (1987), and elements from “Good Morning, Vietnam!” (1987). Ben Stiller, who’s had a run of disappointing movies recently, is sent by his agent (Matthew McConaughey) to join a group of hyper-masculine actors for a jungle warfare film directed by the inexperienced British filmmaker "Damien" (Steve Coogan). Things quickly turn awkward as he, along with comic actor “Portnoy” (Jack Black) and action hero “Lazarous” (Robert Downey Jnr.) start behaving like they’re above everyone else while the director tries to maintain control. Or does he? Once they're deep in the jungle, "Damien" announces there are hidden cameras and traps, suggesting these pampered performers will actually have to get their hands dirty—and their freshly pressed combat uniforms soiled. Unfortunately, his excitement is short-lived when they encounter something left behind by the French, and the troubles begin to pile up. There are real drug dealers in this location, and they aren’t welcoming visitors—particularly those who appear heavily armed. Driven by a couple of ruthless kids with ninja skills, the antagonists decide to eliminate their guests, leading to tests of courage, challenges to loyalty, and an abundance of explosions – providing stunt performers opportunities to risk injury and allowing Heinz to profit from ketchup sales. There's a genuine spark between Ben Stiller and Robert Downey Jnr., Jack Black embraces the vulgarity with considerable amusement, and the sharp, witty writing mercilessly mocks this type of over-the-top American action movie. It even pokes fun at award ceremonies—and all that excessive celebration alongside the eagerness of those who didn't win to criticize others—with Jon Voight appearing in a brief role. This is my favorite Ben Stiller film and it’s stood the test of time, with much of the humor still feeling relevant today.

Source on TMDB