When Kujau delivers his painting the song "The Passenger" in the version of Siouxsie and the Banshees is played. This version was released in 1987, while the scene is set in 1981.
"All Through the Night" by Cyndi Lauper, a song from 1983 is played during the harbor scene in 1981.
The "MS Bleichen", the ship on which Elisabeth and Thomas are sneaking on in the 1980s, was named "Arcipel" in 1979. In the movie it is still called "MS Bleichen". The ship wasn't called like that since 1970.
The editor-in-chief mentioned that Gerd Heidemann was working for a quarter of a century aka 25 years for Stern magazine. Heidemann became permanent staff member of Stern in 1955, while the scene is set in 1981, which would make it 26 years.