Parents guide

None.

Several people are stabbed, shot, or otherwise attacked and injured during the course of the film. These violent actions are rarely shown in detail, but typically occur during a camera cut, with someone's body obscuring the action, or off-screen. One camera shot shows the hijacker pressing a knife into a person's clothed leg, inflicting pain by the stabbing.

Injuries sustained by the characters throughout the film are shown in detail after they have been received, including shrapnel wounds, gunshot wounds, head injuries, and other bodily injuries. They are typically shown briefly, but the film does not shy away from showing bloody wounds, as is typical in South Korean thrillers.

Small amounts of foul language. Typically used as insults, i.e. "commie bastard," etc. A few scatological terms.

Characters are shown casually smoking, in keeping with the 1970s setting.

Hijack 1971 is a very intense film. For most of the runtime, characters are under constant, menacing threat of injury and death. Characters are shown panicking, weeping, begging, with guns pressed to their heads, etc. The film rarely departs from this scenario.