One of the first things I realised in the first few minutes of this film was that there was no background music. And that made me put faith in the film to be realistic and serious.
If you want an "experience" of how real situations work, how the hijackers or the pilots behave, how our psychology works when we're afraid, frozen, hesitated, then this film can give that serious dose in the simplest plot. The film is from the point of view of Tobias (the main character), hence most of the scenes are in the cockpit (that's why I called it an experience.. it gives you a feel of watching everything from his view and feeling everything he's feeling).
Spoiler ahead : The scene that made me want to continue was when I waited for Tobias to open the cockpit door, he actually didn't. And that was something fresh and new, because every main character always has some vulnerability or morality that makes them take a stupid decision and increase the conflict. But he didn't open the door and it was relieving to see someone acting sensibly.
When I watched certain scenes I was at first a little annoyed at Tobias because it felt like he was not making any drastic decisions or not taking any action as a typical main character or hero should be doing (for example, despite reaching for his knife on various occasions he didn't take the opportunity to kill or harm Vedant), but towards the end I realised that it was as realistic as he could get -- he's not a killer, he's just a pilot (heck even Vedant wasn't fully ready to kill off his friend at the pilot seat until it was too late), we think we can do action and stuff as shown in films, but reality doesn't work that way, things can get pretty bad pretty fast. That said, bad guys can be sloppy, good guys can be also be sloppy, things don't always work all filmy and dramatic and this film proves it.
Also when he wanted to stop and see his girlfriend, the policeman pulled him (of course they didn't know what she meant to him, they were just doing their duty which is hella realistic again).
The constant radio chatter from ATF (Can you hear me? Please report, what's the status?) and the bang on door was distracting, but again that's what would REALLY happen in a real situation.
Overall, it was an out-of-the-world experience to watch how the events would unfold in reality (hoping this doesn't happen to anyone ofcourse).
Both the actors (Joseph and Omid) were amazing.