The Substance: Albert Hofmann's LSD

Directed by Martin Witz
Runtime minutes
Released 2011
IMDb Score: 7.0

Dutti der Riese

Directed by Martin Witz
Runtime minutes
Released 2007
IMDb Score: 7.7

Gateways to New York: Othmar H. Ammann and his bridges

Directed by Martin Witz
Runtime minutes
Released 2019
IMDb Score: 7.8