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.
| Directing | Kurt Maetzig | Director |
| Writing | Wolfgang Schreyer | Screenplay |
| Writing | Gerhard Hartwig | Creative Producer |
| Camera | Günter Haubold | Director of Photography |
| Art | Alfred Hirschmeier | Set Designer |
| Costume & Make-Up | Günter Schmidt | Costume Design |
| Editing | Bärbel Weigel | Editor |
| Camera | Waltraud Pathenheimer | Still Photographer |
| Sound | Marta Valdis | Music |
| Costume & Make-Up | Lothar Stäglich | Makeup Artist |
| Costume & Make-Up | Rosemarie Stäglich | Makeup Artist |
| Production | Margarita Alexandre | Production Manager |
| Production | Heinz Fröhlich | Unit Manager |
| Production | Humberto López y Guerra | Assistant Production Manager |
| Production | Hans Mahlich | Production Manager |
| Production | Oneido Ríos | Unit Manager |
| Directing | Doris Borkmann | Assistant Director |
| Directing | Pastor Vega | Assistant Director |
| Art | Roberto Larrabure | Set Decoration |
| Art | Willi Schäfer | Set Decoration |
| Sound | Bernd Gerwien | Sound |
| Camera | Klaus Zähler | Assistant Camera |
