Sometimes that frustration escalates into "air rage" incidents that still disturb the friendly skies post-September 11.

CNN: Air rage: Passengers 'quicker to snap'

By 2000, the number of air rage incidents in the United States topped 10, 000, Hunter said in her book.

CNN: Air rage: Passengers 'quicker to snap'

Between 1994 and 1997, the number of air rage incidents reported around the world had more than quadrupled from 1, 132 to 5, 416.

CNN: Air rage: Passengers 'quicker to snap'

"Air rage has remained a problem post-September 11, although it is much more subtle than before the attacks, " said University of Akron assistant professor Andrew R.

CNN: Air rage: Passengers 'quicker to snap'

"Today, because of heightened security awareness and the reinforced cockpit door, air rage is likely to involve a confrontation between a disruptive passenger and a member of the flight crew or another traveler, " he said.

CNN: Air rage: Passengers 'quicker to snap'

The term "air rage" entered the public consciousness in the 1990s, spurred by a rash of incidents, culminating in the death of Jonathan Burton in 2000 at the hands of fellow passengers attempting to restrain him as he rushed the cockpit door.

CNN: Air rage: Passengers 'quicker to snap'

Ultimately, I think most people who rage loudly against MTs are mostly hot air.

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The rest of the movie consists of the couple escaping into one green, air-locked room after another as the prison beasts rage outside.

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