Aaron Shi, who played Daniel Tao, almost got stuck on a train after the rest of the crew had gotten of and had to pull the emergency brake to stop it from leaving while he was still on board.
The actors carried all the film equipment in their backpacks for the entirety of the trip through Europe.
The crew stopped in several cities, (Nice, Ventimiglia, Firenze, and Calais), that never made it into the characters' itinerary, though certain scenes were shot in a few of those cities.
Eric Hinwood and Selena Welling met in film school and got together a year before Carpe Diem: European Escapade was shot, and stayed together for another year after, even though Selena lived in London and Eric lived in Los Angeles.
All four principal actors/filmmakers went to a film school formerly known as the HARA Motion Picture Conservatory for at least one season before the shooting of this film.