Sommersonntag (Summer Sunday) is the dramatic story of Bruno Hansen, a bridge guard of a huge lift bridge in Hamburg. As his 7-year old deaf-mute son climbs down into the restricted area of the lifting equipment while a train is approaching, he has to decide whether to sacrifice his son or to let the fully occupied train drown in the river.
| Directing | Fred Breinersdorfer | Director |
| Directing | Siegfried Kamml | Director |
| Writing | Fred Breinersdorfer | Writer |
| Writing | Siegfried Kamml | Writer |
| Production | Siegfried Kamml | Producer |
| Production | Fred Breinersdorfer | Producer |
| Production | Sabine Wildemann | Associate Producer |
| Sound | Gert Wilden Jr. | Original Music Composer |
| Crew | Anton Klima | Cinematography |
| Editing | Tanja Petry | Editor |
| Production | Monika Praefke | Production Manager |
| Production | Sabine Wildemann | Casting |
