A pioneer in sound recording, Ludwig Koch was suspected by the Nazis of complicity in the Reichstag fire. After taking refuge in England, he specialized in recording birdsong. Blending contemporary imagery with his sound archives, the film retraces his journey.
| Release Date | July 9, 2025 | |
|---|---|---|
| Status | Released | |
| Original Title | Alarm Notes | |
| Runtime | 2h 3min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom, Germany | |
| Production Companies | ||