When he discovers his guardian is dying, an autistic twenty-something travels across country to bring back a deluded, has-been country singer, believing that a personal performance will inspire his guardian to live.
Unfortunately the movie Highly Functional is not yet available on HBO Max.
| Directing | Marc Forby | Director |
| Writing | Tom Dibble | Writer |
| Production | Alphonse Ghossein | Executive Producer |
| Production | Kaila York | Producer |
| Production | Tom Dibble | Co-Producer |
| Production | Robert Menzies | Producer |
| Sound | Christopher Nicholas Bangs | Music |
| Production | Penny Perry | Casting |
| Production | Ilona Smyth | Casting |
| Camera | Celiana Cárdenas | Director of Photography |
| Art | Garren Dunbar | Art Direction |
| Art | Shane Boucher | Production Design |
| Costume & Make-Up | Jennifer Stroud | Costume Design |
