Returning from eight years abroad at work and in prison, Jeong-il struggles to reconnect with his wife and their young daughter, Ye-sol, whom he barely knows.
Unfortunately the movie Birthday is not yet available on HBO Max.
| Crew | Yun Min-gyu | Stunts |
| Editing | Lee Hye-min | Colorist |
| Art | Kim Jung-hyun | Set Decoration |
| Visual Effects | Yang Il-seok | VFX Supervisor |
| Camera | Choi Wun-jin | Grip |
| Visual Effects | Park Si-hwan | CGI Director |
| Visual Effects | Min Jun-ho | VFX Supervisor |
| Directing | Lee Jong-un | Director |
| Writing | Lee Jong-un | Writer |
| Production | Kim Soon-mo | Producer |
| Production | Lee Chang-dong | Executive Producer |
| Production | Lee Joon-dong | Executive Producer |
| Production | Lee Dong-ha | Executive Producer |
| Camera | Cho Yong-kyu | Director of Photography |
| Editing | Shin Min-kyung | Editor |
| Art | Lee Mok-won | Production Design |
| Sound | Lee Seung-chul | Sound Supervisor |
| Costume & Make-Up | Kim Jung-won | Costume Design |
| Sound | Lee Jae-jin | Music |
| Art | You Cheong | Props |
| Costume & Make-Up | Lee Eun-ju | Makeup & Hair |
| Art | Kim Hyung-jik | Set Decoration |
| Lighting | Park Sang-wook | Lighting Director |
| Art | Park Jun-yong | Props |
