Ancient tricks, as if they are tattooed on a ghost child's hand, such as jittery camera and annoying booms are used excessively. The film doesn't have any coherent soundtracks, it has loud thuds and shouts to signal when the audience are supposed to react. The dark graphic isn't helping either, almost half the movie is shot in blinking lights or just bad lighting.
Story is a mixed bag of unexplained mysteries, the movie throws some shady philosophical life gibberish and it comes off at cringe-worthy at best. Acting are sloppy, but it's probably not the actors' fault since the on-screen characters are not identifiable. They are highly unrealistic, created just to fit stereotypical roles.
Strangely, there are some names from TV shows here, and while they are not box office veterans, they might have done better with more consistent material. That doesn't stop the film from churning high dose of subplots, none of these pay off in any meaningful way. They only ironically create more plot holes, enough to trip an aircraft into free fall.
It has one or two good moments, and the rest is fumbling around in existential crisis. Effects of the smoke and turbulence don't produce claustrophobic thrill, instead they just seem messy and cheap. If audience lasts through the movie they might have a surprising conclusion, as in baffled how it literally happens.
This is one flight you'd glad to cancel, for the sake of saving time and money.
It's either a short 'C' grade thriller, or an attempt to make a long Twilight Zone episode. Either way you look at it, it fails miserably.
And referencing 'Nightmare at 20,000 Feet' didn't help ante up the movies flagging cred.
There are no interesting characters no decent dialogue, really one to miss.