[Carl Vehse]

A BBC video, "The Real Heroes of Telemark," on YouTube, presents the history in multiple parts.

The 1965 movie, starring Kirk Douglas, is a Hollywood fairy-tale version.

[yefragetuwrabrumuy]

There was an earlier, French-Norwegian film, almost a documentary recreation, called “Kampen om tungtvannet” (1948), that used several of the actual participants.

http://www.imdb.com/title/tt0040504/

But in that movie, Birger Stromsheim was portrayed by an actor.