When Dietrich's laptop asks for a password the phrase "Tragen Sie Kennwort ein" appears - a literal and way too formal translation of "Enter password". Usually, only "Kennwort" or "Passwort" would be used.
In Munich (Germany), all characters are speaking German with a heavy foreign accent, even the native German characters like Dietrich.
At the beginning a works man is working on a star at the CIA Memorial Wall for Vaughn's father, somewhere in the middle of the memorial. Stars are only added to the outside of existing rows or when a new row is needed, from the center underneath the existing rows.