If you know anything about airplanes, aircraft design, water, aircraft flight paths, ocean waves, securing cargo on passenger aircraft, where Guam actually is, or water pressure, you will be annoyed by this film. (I don't know much about sharks, but I presume that they got most of that wrong, too.)
Given the prevalence of screens and devices, and the fact that the whole thing is set off by a faulty device, it could be seen as an indictment of our modern screen-oriented society. Or maybe just that smoking can kill you. (In more ways than one.)
I don't know why Aaron Eckhart and Ben Kingsley signed on to such an egregiously error-laden turkey, but I suppose anyone can make a mistake, and a lot of the goofs wouldn't be as obvious in script form. (Kingsley gets to die relatively quickly.)