Not quite non stop action.

Rating: 7/10 (28 February 2014)

The term suspension of disbelief required here.
Liam Neeson plays a character flawed Air Marshall. He disables the lavatory smoke detector. Julianne Moore becomes the side kick. (Sandra Bullock would have landed the plane.)
The movie resets the clock every twenty minutes as those aboard the plane are killed on schedule. Soon you wish they were killing people on a ten minute schedule. Maybe they needed to illuminate the "fasten your seatbelt" sign to stop the killings? The one plane location gets a bit claustrophobic. Some scenes look like they were shot on a cel phone.
Any flight you walk away from is a good flight. So what if the plane blows up and crashes. So what if the movie is unbelievable it is a good time while watching. Get a boarding pass and take this flight.