Robert Talbot, an American millionaire, arrives early for his annual vacation at his luxurious Italian villa. His long-time girlfriend Lisa has given up waiting for him and has decided to marry another man. Meanwhile, his sneaky business associate Maurice secretly misappropriates the villa as a hotel while Talbot is away. The current guests of the "hotel" are a group of young American girls.
Unfortunately the movie Come September is not yet available on HBO Max.
| Directing | Robert Mulligan | Director |
| Writing | Stanley Shapiro | Screenplay |
| Writing | Maurice Richlin | Screenplay |
| Writing | Stanley Roberts | Story |
| Camera | William H. Daniels | Director of Photography |
| Production | Raoul Walsh | Producer |
| Production | Henry Willson | Associate Producer |
| Art | Henry Bumstead | Art Direction |
| Art | John P. Austin | Set Decoration |
| Costume & Make-Up | Morton Haack | Costume Design |
| Production | Ernest B. Wehmeyer | Production Manager |
| Directing | Joseph E. Kenney | Assistant Director |
| Crew | Russell Garcia | Additional Music |
| Costume & Make-Up | Jack Freeman | Makeup Artist |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Production | Edward Muhl | Executive In Charge Of Production |
| Art | Italo Tomassi | Art Department Manager |
| Sound | Sash Fisher | Sound |
| Sound | Waldon O. Watson | Sound |
| Lighting | Raffaele Marino | Gaffer |
| Camera | Léo L. Fuchs | Still Photographer |
| Sound | Joseph Gershenson | Music Supervisor |
| Sound | Ethmer Roten | Musician |
| Writing | Robert Russell | Story |
| Sound | Hans J. Salter | Original Music Composer |
| Editing | Russell F. Schoengarth | Editor |
| Production | Robert Arthur | Producer |
