Directed by
| Guillermo de Oliveira | ||
Writing Credits (in alphabetical order)
| Guillermo de Oliveira | ||
Cast (in credits order)
| Ennio Morricone | ... | Self | |
| James Hetfield | |||
| Joe Dante | |||
| Clint Eastwood | |||
| Sergio Leone | ... | Self (archive footage) | |
| Álex de la Iglesia | |||
| Sergio Salvati | |||
 |
Joseba del Valle | ||
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David Alba Romero | ||
| Sergio García Hernández | |||
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Diego Montero | ||
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Eugenio Alabiso | ||
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Stephen Leigh | ||
| Daniel Jeffery | ... | Self (archive footage) | |
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Carlo Leva | ||
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Peter J. Hanley | ||
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Christopher Frayling | ||
| Rest of cast listed alphabetically: | |||
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|
Will Ross | ... | Self (archive footage) |
|
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Devan Scott | ... | Self (archive footage) |
| Romano Puppo | ... | Self (archive footage) (uncredited) | |
| Lee Van Cleef | ... | Self (archive footage) (uncredited) | |
Produced by
| Cédric Biscay | ... | associate producer |
| Luisa Cowell | ... | producer |
| Guillermo de Oliveira | ... | producer |
| Alejandro Fernández Larrañaga | ... | associate producer |
| Richard Douglas Jensen | ... | associate producer (as Richard Jensen) |
| Csaba Mészáros | ... | associate producer |
Music by
| Zeltia Montes | ||
Cinematography by
| Guillermo de Oliveira | ... | director of photography (as Lenny Gómez) |
Editing by
| Guillermo de Oliveira | ||
| Javier Duch | ... | co-editor |
Art Department
| Iñaki Villuendas | ... | poster designer |
Sound Department
| Javier Duch | ... | sound |
| Pepe Pleguezuelos | ... | re-recording mixer |
| Alejandro Rochette | ... | facilities assistant |
| Javier Valdés | ... | facilities manager |
Visual Effects by
| Juls Gars | ... | motion graphics |
| Alberto Sobreviela Falces | ... | motion graphics |
Camera and Electrical Department
| Malores Fernández de Olivera | ... | assistant camera (interview segment) |
| Leroy Kincaide | ... | camera operator (interview segment) |
| Pedro Gonzalez Kuhn | ... | camera operator (as Pedro González Kuhn) (interview segment) |
| Naftali Beane Rutter | ... | camera operator (interview segment) |
| Ignacio Sánchez de Bustamante | ... | camera operator: second unit |
Editorial Department
| Ezequiel Romero | ... | colorist |
Music Department
| Alfredo Jiménez | ... | Music score mixer |
| Joan Martorell | ... | orchestrator |
| Nicolas Salinardi | ... | technical score engineer |
Additional Crew
| Nano Arrieta | ... | business advisor |
| Toño Cubillo | ... | facilities assistant |
Thanks
| Graham Clegg | ... | special thanks |
| Javier Esteban Loring | ... | special thanks |
| Peter Fellows | ... | thanks |
| Alberto Grimaldi | ... | special thanks |
| Carlos Hernando | ... | special thanks |
| Miguel Herrero Herrero | ... | special thanks |
| Kristina Rivera | ... | special thanks |
| Sebastian Twardosz | ... | special thanks |
