Cosima Henmann is the daughter of director and screenwriter Granz Henman.
In 1994, Granz Henman landed a job as a production assistant in the feature film Kids by Larry Clark. Four years later, he co-directed Til Schweiger's directorial debut, the film The Polar Bear.
Granz Henman and Axel Stein have already worked together in 8 films.
Cosima Henman and Tobias Schäfer played a pair of lovers and best friends respectively in the film "Hammerharte Jungs".
Tobias Schäfer had his first main role in the theatre group of the Kardinal-Frings-Gymnasium in Bonn.