Arf Arf is a sound poetry (voice and gesticulation) group. They describe their first film together as 'songs nailed together in a film'. The film is not given over to simply recording a performance of sound poetry but is worked out as a filmic combination of images and sound, each member of the group having individually previously made experimental films.
Unfortunately the movie Thread of Voice is not yet available on HBO Max.
| Directing | Marcus Bergner | Director |
| Directing | Michael Buckley | Director |
| Directing | Frank Lovece | Director |
| Directing | Marisa Stirpe | Director |
| Editing | Frank Lovece | Editor |
| Editing | Michael Buckley | Editor |
| Editing | Marcus Bergner | Editor |
| Editing | Marisa Stirpe | Editor |
| Production | Roslyn Walker | Line Producer |
| Production | Marie Craven | Associate Producer |
| Camera | Robin Plunkett | Director of Photography |
| Camera | Belinda Green | Camera Operator |
| Camera | Laszlo Dundas | Camera Operator |
| Sound | Ray Boseley | Sound Recordist |
| Sound | Leesa Marie Spencer | Sound Recordist |
| Sound | Lisa Gerrard | Sound Recordist |
| Sound | Dimitri Kyriakou | Sound Recordist |
| Sound | Jacek Tuschewski | Sound Recordist |
| Camera | David Lindsey | Camera Production Assistant |
| Lighting | Steve Price | Gaffer |
| Camera | Wain Fimeri | Camera Production Assistant |
| Visual Effects | Arf Arf | Animation |
| Camera | Arf Arf | Camera Operator |
| Directing | Arf Arf | Director |
| Editing | Arf Arf | Editor |
| Production | Arf Arf | Producer |
| Sound | Arf Arf | Sound Recordist |
| Sound | Peter Frost | Sound Mixer |
| Art | Nigel Buesst | Property Master |
