Plane.
This is one of those movies where you have to take a step (or several) back from how a plane is flown in real life and the kind of checklists a real pilot would do and understand this is a movie where a few shortcuts were taken either because the director has no clue and couldn't be bothered to find out, or, the pilot has to have a certain dialogue to keep the audience mildly entertained.
So if you can overlook that stuff (I can, I watched Non-Stop and The Commuter) then you could find this film entertaining. For me, I just needed to get out and watch a movie that doesn't require too much thinking and to that end, this was exactly the kind of film I wanted/needed to watch.
Pilot checklist:
Fish dinner: check.
Seat 57 occupied: check
All snakes stowed insecurely: check
Swarthy foreigner clutching bag: check
Shelley Winters: check
Model aircraft engineer on board: check