Daniela – a single mother, whose boyfriend left for the US – believes wholeheartedly in Cuba's revolutionary new order. Meanwhile, in Florida, a plot is afoot. Under the command of an American officer, four Cubans ex-patriots and a Guatemalan land on the Cuban coast to prepare a US invasion of the island. Daniela's superior, the corrupt Cuban officer Palomino, is secretly helping the invaders and the young woman becomes entangled in the intrigue.
Unfortunately the movie Preludio 11 is not yet available on HBO Max.
| Camera | Waltraud Pathenheimer | Still Photographer |
| Writing | Gerhard Hartwig | Creative Producer |
| Editing | Bärbel Weigel | Editor |
| Camera | Günter Haubold | Director of Photography |
| Sound | Marta Valdis | Music |
| Art | Alfred Hirschmeier | Set Designer |
| Costume & Make-Up | Günter Schmidt | Costume Design |
| Directing | Kurt Maetzig | Director |
| Writing | Wolfgang Schreyer | Screenplay |
| Production | Humberto López y Guerra | Assistant Production Manager |
| Production | Hans Mahlich | Production Manager |
| Sound | Bernd Gerwien | Sound |
| Art | Roberto Larrabure | Set Decoration |
| Production | Margarita Alexandre | Production Manager |
| Costume & Make-Up | Rosemarie Stäglich | Makeup Artist |
| Directing | Doris Borkmann | Assistant Director |
| Camera | Klaus Zähler | Assistant Camera |
| Art | Willi Schäfer | Set Decoration |
| Costume & Make-Up | Lothar Stäglich | Makeup Artist |
| Directing | Pastor Vega | Assistant Director |
| Production | Heinz Fröhlich | Unit Manager |
| Production | Oneido Ríos | Unit Manager |
