Teenage sisters Charli and Lola are on the verge of an experience beyond their wildest dreams! Pack your bags and jet off to Rome as the girls start their summer internship working for the legendary Derek Hanson - the totally cool international tycoon whose empire reaches from airlines to cutting-edge fashion. Amid the fabulous sights of this exciting city, the girls do their best to impress their boss, while still finding time to design their own line of very hip clothing, meet some very cute guys and turn their summer abroad into one awesome adventure they - and you - will never forget!
Unfortunately the movie When in Rome is not yet available on HBO Max.
| Writing | Michael Swerdlick | Writer |
| Sound | Brahm Wenger | Original Music Composer |
| Production | Peter Abrams | Executive Producer |
| Production | J.P. Guerin | Executive Producer |
| Production | Robert L. Levy | Executive Producer |
| Production | Robert Thorne | Executive Producer |
| Production | Mary-Kate Olsen | Executive Producer |
| Production | Ashley Olsen | Executive Producer |
| Production | Neil Steinberg | Producer |
| Production | Natan Zahavi | Producer |
| Camera | David Lewis | Director of Photography |
| Editing | Sherwood Jones | Editor |
| Art | Alessandra Querzola | Production Design |
| Costume & Make-Up | Mario Di Salvio | Key Makeup Artist |
| Directing | Steve Purcell | Director |
| Production | Jill Zimmerman | Co-Producer |
| Camera | Marcello Montarsi | Director of Photography |
| Costume & Make-Up | Judy B. Swartz | Costume Designer |
| Production | Anđelija Vlaisavljević | Production Supervisor |
| Production | Marcantonio Borghese | Line Producer |
| Production | Valeria Licurgo | Production Manager |
| Directing | Filippo Fassetta | First Assistant Director |
| Directing | Mimosa Nistri Ranalletti | Second Assistant Director |
| Production | Fabiomassimo Dell'Orco | Location Manager |
| Directing | Giorgia Onofri | Script Supervisor |
| Production | Laura Cimarelli | Accountant |
| Camera | Meila Penn | Still Photographer |
| Sound | Andrea Corbisier | Sound Mixer |
| Lighting | Massimo Cecchini | Electrician |
| Lighting | Paolo Di Stefano | Electrician |
| Camera | Paolo Frasson | Key Grip |
| Camera | Angelo Donatone | Grip |
| Camera | Danilo Polci | Grip |
| Costume & Make-Up | Irene Bilo | Costume Designer |
| Costume & Make-Up | Jamie Hiney | Set Costumer |
| Costume & Make-Up | Carla Vicenzino | Key Hair Stylist |
| Sound | Andrew Casciato | Foley Editor |
| Editing | Todd Bochner | Colorist |
| Visual Effects | Trent Shumway | Digital Compositor |
| Directing | Natan Zahavi | First Assistant Director |
