Columbia Pictures has announced that a movie based on Return to Castle Wolfenstein is being planned.
An update of the original Wolfenstein 3D (1992) from 1992, which popularized the first-person shooter genre of games. Wolfenstein 3D was in turn based on a series of Castle Wolfenstein games produced for home computers such as the Apple II in the early 1980s.
In Paderborn village, in the psychic's house, there is a letter to a doctor Merkwurdigliebe. Dr. Merkwürdigliebe, meaning Dr. Strangelove, is a character from Il dottor Stranamore - Ovvero: come ho imparato a non preoccuparmi e ad amare la bomba (1964).
The five people chosen for assassination in one mission are names of Germans in the TV show Gli eroi di Hogan (1965).