The American

The American Trivia

When Jack is eating dinner with the priest, music from Madama Butterfly is playing in the background. Mathilde and Clara's nickname for Jack is Mr. Butterfly.
With the influx of cast and crew, the existing population of Castel del Monte - 129 people - was more than doubled. When a crew member needed emergency dental work, he had to go to a nearby town as the answering machine of Castel del Monte's dentist declared that he was "unavailable, due to his appearance in a Hollywood film."
Jack / Edward uses Walther PPK pistol, just like James Bond.
This film marks the first time since Frühlingssinfonie (1983) that German musician Herbert Grönemeyer composed the music for a theatrical motion picture (his second time overall).