Fasten Your Seatbelt Hangul RRRolleo Koseuteo lit. Rollercoaster is a 2013 South Korean comedy film written and directed by actor Ha Jungwoo, in his directorial debut. The film made its world premiere at the 18th Busan International Film Festival, and was released in theaters on October 17, 2013.
Ha Jungwoo said hed always had the desire to study about film more, so he seized the opportunity to approach this movie not as an actor but as a director. Having pondered what kind of film I should make, I came to the conclusion that I would only be satisfied if the audience could enjoy it and get some laughs. This naturally led me to write a comedy, Ha said.Ha reportedly wrote the script based on his friend and fellow actor Ryoo Seungbums reallife experience. The flight from Seoul to Tokyo normally only takes about two hours, but Ryoo once experienced plane turbulence that went on for almost seven hours, during which he genuinely thought he was going to die. ........
Source: Wikipedia