The genius Spanish painter Salvador Dalí undertakes an amazing journey through the unknown mental territories of Upper Mongolia in search of a giant hallucinogenic mushroom while paying an experimental tribute to the French poet Raymond Roussel (1877-1933), a visionary and eccentric writer, precursor of the surrealists and much admired by them.
Unfortunately the movie Impressions of Upper Mongolia is not yet available on Disney Plus.
| Directing | José Montes-Baquer | Director |
| Directing | Salvador Dalí | Director |
| Camera | Bodo Kessler | Camera Operator |
| Camera | Günter Keils | Camera Operator |
| Camera | Dietbert Schmidt | Camera Operator |
| Crew | Alfred Maas | Technical Supervisor |
| Lighting | Siegfried Donat | Gaffer |
| Sound | Hans Günter Kasper | Sound |
| Writing | Salvador Dalí | Screenplay |
| Editing | Eva Lance | Editor |
| Editing | Eva Voosen | Editor |
| Art | Dagmar Pohlmann | Graphic Designer |
| Sound | Ingfried Hoffmann | Music Arranger |
| Production | Jürgen Birth | Production Manager |
| Production | Volker Dieckmann | Production Manager |
| Production | Frithjof Zeidler | Associate Producer |
| Production | Manfred Gräter | Producer |
