I don't know what it is about the planes but they do seem to lend a certain "je ne sais quoi" to movies. Whether it's the claustrophobic environment with its shared intimacy or our general familiarity with air travel, staging a film on a commercial flight can often improve its chances to entertain. Zombies, snakes and terrorists have all benefited from this plot device, with varying degrees of success. So bearing this in mind, if you put Liam Neeson on a plane, you know that there's going to be more than just some in-flight turbulence. That is exactly what director Jaume Collet-Serra and writers Chris Roach and John Richardson have done with Non-Stop; a surprisingly entertaining action movie.