Anachronisms: One of the first scenes shows the team of Rahn on a small football ground. In the background you see two cooling towers, a big funnel with the word "SHELL" in white letters and a huge white-painted crude oil tank. Apparently, the film set was in Köln-Godorf with the refinery of "Shell Deutschland GmbH" in the background. Shell Refinery was put on stream in 1960 with one cooling tower (the second was build some years later). Tank No. 7 was build in 1965. In the early-50s, crude oil tanks with more than 100,000 m3 capacity and a diameter of nearly 100m were not technical standard in Germany.
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