A story about three friends who just turned twenty; an age where you can do whatever you want, love whoever you want with opportunities abroad.
Unfortunately the movie Twenty is not yet available on HBO Max.
| Writing | Lee Byeong-heon | Writer |
| Directing | Lee Byeong-heon | Director |
| Art | Chae Kyung-sun | Production Design |
| Sound | Han Myung-hwan | Sound Mixer |
| Sound | Lee Seung-chul | Sound Supervisor |
| Sound | Lee Sung-jin | Sound Supervisor |
| Camera | Noh Seung-bo | Director of Photography |
| Sound | Lee Sang-wook | Sound Recordist |
| Production | Kim Woo-taek | Executive Producer |
| Sound | Jeong Ji-young | Sound Effects Designer |
| Editing | Lee Gang-hee | Assistant Editor |
| Editing | Nam Na-young | Editor |
| Costume & Make-Up | Kim Do-hee | Makeup & Hair |
| Art | Kim Jung-gon | Set Dresser |
| Production | Lee Seung-ryong | Line Producer |
| Art | Jin Hoon | Props |
| Crew | Jeon Jae-hyeong | Stunts |
| Lighting | Lee Byeong-hoon | Lighting Director |
| Crew | Yoon Jin-yul | Stunts |
| Visual Effects | Cho Yong-seok | VFX Supervisor |
| Crew | Jeong Yoon-heon | Stunts |
| Editing | Kim Yeol-hoe | Digital Intermediate |
| Writing | Lee Yoon-ho | Storyboard |
| Crew | Seo Ji-oh | Stunts |
| Visual Effects | Park Kyoung-soo | Special Effects Supervisor |
| Costume & Make-Up | Park Song-hee | Makeup Artist |
| Directing | Kim Hye-young | Assistant Director |
| Camera | Lee Geun-woo | Key Grip |
