Gian Keller was funding and is running the independent film project Felix Mater Society. Since funding in 2015 Felix Mater Society was involved in more than 30 film projects in various roles.
Diğer Roller
| 2024 | I Love You, Guys - Associate Producer |
| 2022 | Boy in the Corner - Executive Producer |
| 2020 | Machtlos - Co-Producer |
| 2019 | Bitter Sky - Executive Producer |
| 2018 | 1940 - Executive Producer |
| 2017 | Conscientia - Executive Producer |
| 2017 | To the Bone - Executive Producer |
| 2017 | Bahama Sunrise - Executive Producer |
| 2017 | La Tutora - Executive Producer |
| 2016 | Harlequin - Executive Producer |
| 2015 | The Pigman - Executive Producer |
| Being - Associate Producer | |
| Mould - Executive Producer | |
| The Grim Truth - Executive Producer |
Duvar