A small Spanish town, Villar del Río, is alerted to the upcoming visit of American diplomats and its ruling townsmen begin preparations to impress the American visitors, in the hopes of benefiting under the Marshall Plan. Hoping to demonstrate the side of Spanish culture with which the visiting foreign officials would be more familiarized, the Castilian citizens don unfamiliar Andalusian costumes, hire a renowned flamenco performer, and re-decorate their town in Andalusian style, meantime waiting for their uncertain arrival.
Unfortunately the movie Welcome Mr. Marshall! is not yet available on HBO Max.
| Directing | Luis García Berlanga | Director |
| Writing | Luis García Berlanga | Screenplay |
| Writing | Juan Antonio Bardem | Screenplay |
| Writing | Miguel Mihura | Screenplay |
| Sound | Jesús García Leoz | Original Music Composer |
| Camera | Manuel Berenguer | Director of Photography |
| Editing | Pepita Orduna | Editor |
| Art | Francisco Canet Cubel | Set Decoration |
| Directing | Ricardo Muñoz Suay | Assistant Director |
| Crew | Federico del Toro | Property Master |
| Camera | Miguel Guzmán | Still Photographer |
| Camera | Eloy Mella | Camera Operator |
| Editing | Alicia Castillo | Assistant Editor |
| Costume & Make-Up | Eduardo de la Torre | Costume Design |
| Sound | Antonio Alonso | Sound Designer |
| Art | Francisco Rodríguez Asensio | Production Design |
