The first must-see film of the year.

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

The plot isn't so bad, but the pace of storytelling is too slow which makes people bored. Certain moments are so obvious and unnecessary for the main plot. I would've fast-forwarded those moments if it was an online streaming. The ending looks like implying a sequel, not sure if this movie will get one

One of the best movies of the year! Incredible from the beginning to the end.

Let me begin with - Had it not been for Ha Jung Woo directorial debut, I probably wouldn't watch this movie. A few minutes into the movie, I feel a little bit uncomfortable with the increasing ridiculous characters who board the plane. As this goes on, I couldn't fathom what kind of movie this is, or what kind of philosophical art Ha Jung-woo is bringing to the big screen. 20 minutes into the movie, I'm still concerned on how this movie will wrap up. I hope that I will just sit still and enjoy the ride but it's kinda impossible to do. The mockery or should I say comedy satire keeps popping up and as I'm about to get up from my sit, I started feeling addictive to the jokes. Not that I burst with laughter, not even a smirk but that continuous engaging scenes keep me on my sit.I gotta tell you, as much as I want to hate, this movie was STRANGELY ADDICTIVE. The same vibe I had when I watch This is the End. Only, of course, this is done the Korean style.In a way, I think this movie does live up to it's title; be it Roller Coaster or Fasten Your Seatbelt.So, well done. I think you've done a pretty good job with this, Ha Jung Woo-ssi. I'll be waiting for the next one with Ha Ji-won. I'm sure she's so excited that her dream is finally coming true.