- Country: Italy, West Germany
- Genres: Crime, Sci-Fi, Thriller
- Release: 1970-06-01
- Director: Thomas Schamoni
- Writers: Uwe Brandner , Hans Noever , Arthur Rimbaud , Thomas Schamoni
- Language: German
- Stars: Klaus Lemke , Olivera Katarina , Sylvie Winter , Umberto Orsini , Lukas Ammann , Rolf Becker , Walter Ladengast , Bernd Fiedler , Sigi Graue , Mario Novelli
- Runtime: 95 min
- Awards: 2 wins
- AKA: Bottom , Ein großer graublauer Vogel , A Big Grey-Blue Bird (Canada) , Un grosso uccello grigio azzurro (Italy) , Um Grande Pássaro Cinza-Azul (Portugal, Portuguese Republic) , A Big Grey-Blue Bird , Ein großer graublauer Vogel
- Plot: The poet Tom-X meets the vagrant and former scientist Belotti, who has developed the formula with four colleagues. According to Belotti, he is encoded in a poem of which he only knows a single verse. When he dies a short time later, Tom-X goes to search for the other four scientists. Apart from him, numerous agents still seem to chase the secret of the formula. Whether it is only a result of the poetical imagination of Tom-X is still uncertain.
- IMDB:tt0067163
A Big Grey-Blue Bird Cast · · · ALL
Thomas Schamoni
Director
Olivera Katarina
Diana
Klaus Lemke
Tom-X
Lukas Ammann
Cinque
Umberto Orsini
Morelli
Thomas Braut
G.O. Gio
Rolf Becker
Lunette
Marquard Bohm
Bill
Walter Ladengast
Belotti
Hans Karl Friedrich
Bernd Fiedler
Knokke
Klaus W. Krause
Sigi Graue
O'Brian
Camillo Kuehles
Mario Novelli
Herbert
Robert Siodmak
Sylvie Winter
Peter Berling