Two boys are becoming real adults during a turbulent time as they experience a world that doesn't go their way.
Unfortunately the movie Start-Up is not yet available on HBO Max.
| Directing | Choi Jung-yol | Director |
| Writing | Choi Jung-yol | Writer |
| Production | Cho Sung-min | Producer |
| Costume & Make-Up | Nam Ji-soo | Costume Design |
| Sound | Kim Chang-sub | Sound Recordist |
| Production | Kim Kang-e | Associate Producer |
| Lighting | Kim Min-jae | Lighting Director |
| Production | Ryoo Seung-wan | Producer |
| Sound | Mowg | Music |
| Production | Kang Hye-jung | Producer |
| Art | Son Min-jeong | Production Design |
| Editing | Lee Gang-hee | Editor |
| Production | Kim Woo-taek | Executive Producer |
| Camera | Lee Hyung-bin | Director of Photography |
| Editing | Park Jin-young | Digital Intermediate |
| Crew | Kim Min-soo | Stunts |
| Crew | Yoon Dae-won | Martial Arts Choreographer |
| Crew | Kwon Tae-ho | Stunts |
| Crew | Yoo Mi-jin | Stunts |
| Sound | Lee Yun-jae | Production Sound Mixer |
| Crew | Yoon Jin-yul | Stunts |
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Crew | Yoon Seong-min | Stunts |
| Art | Lee Bong-woo | Set Decoration |
| Camera | Woo Geum-ho | Camera Car |
| Art | Kim Jin-hee | Art Direction |
| Art | Kang Moo-seong | Set Decoration |
| Crew | Kwon Ji-hoon | Stunts |
| Crew | Lim Hyo-woo | Stunts |
