The Substance: Albert Hofmann's LSD is a movie starring Trevor J. Roling, Hanspeter Müller, and Mario Scarabelli. In 1943, the year in which the first A-bomb was built, Albert Hofmann discovered LSD, a substance that was to become... Actors who played in the movie Trevor J. Roling, Hanspeter Müller, Mario Scarabelli, Albert Hofmann, Stanislav Grof.You are watching the movie The Substance: Albert Hofmann's LSD produced in Switzerland, Germany belongs.