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Kampen om tungtvannet (1948)

Not Rated | | Action, Drama, War | 5 February 1948 (Norway)
A factual reconstruction of the sabotage events which took place to prevent Hitler's Germany in getting the heavy water needed to make an atomic bomb during WW2.


Haakon Bugge Mahrt (commentaries), Jean Martin
1 win & 1 nomination. See more awards »


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Cast overview, first billed only:
Raoul Dautry ... Himself - Rustningsminister
Frédéric Joliot-Curie ... Himself - Professor (as Joliot-Curie)
Lew Kowarski ... Himself - Laboratoriesjef
H.H. Halban ... Himself - Professor
Allier Allier ... Himself - Sprengstoff-offiser (as Jacues A)
Holme Holme ... Oberst Wilson (as Major Holme)
Jourdier Jourdier ... Liaisonoffiser (as Major Jourdier)
Stibbard Stibbard ... R.A.F.-offiser (as Major Stibbard)
Øyvind Øyen Øyvind Øyen ... Leif Tronstad - Major Professor
Jens A. Poulsson ... Himself - Fenrik (as Jens-Anton Poulsson)
Johannes Eckhoff ... Knut Haugland - Fenrik
Arne Kjelstrup ... Himself - Sersjant
Claus Helberg ... Himself - Sersjant
Henki Kolstad Henki Kolstad ... Einar Skinnarland - Sersjant
Claus Wiese ... Joachim Rønneberg - Fenrik


A reconstruction of the two last sabotage actions against the Norsk Hydro Heavy Water (Deuterium, D2O) plant at Vemork, Rjukan, in 1943-44. After the first two allied attempt of stopping the production by British soldiers and American bombings, allied trained young local patriots became successful saboteurs. First by undermining the factory, and later after a rebuild, the sinking of the heavily guarded ferry trying to transport the heavy water to Germany, on Lake Tinnsjo. Written by OJT

Plot Summary | Plot Synopsis


Action | Drama | War


Not Rated | See all certifications »



Norway | France


Norwegian | English

Release Date:

5 February 1948 (Norway) See more »

Also Known As:

Operation Swallow: The Battle for Heavy Water See more »

Filming Locations:

Rjukan, Telemark, Norway See more »

Company Credits

Production Co:

Hero Film, Trident See more »
Show more on IMDbPro »

Technical Specs

Sound Mix:


Aspect Ratio:

1.37 : 1
See full technical specs »

Did You Know?


Many of the actual people involved in the sabotage retold in this movie, play themselves reenacting the actual events. See more »


Remade as The Heroes of Telemark (1965) See more »

Frequently Asked Questions

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User Reviews

goes to show that a movie does not need to be good,to be great.
8 June 2005 | by ceasetoamazeSee all my reviews

by saying that,I mean that this is not a well made movie but it's a very good version of the real event and the best depiction so far.and if you are a WW2 buff then this is a treat for you,cause there are three out of four saboteur members playing roles in this movie. It's theater acting at best but then this is still as said before a semi documentary.

Me personally am a die hard fan of our nearly over-human heroes of the second world war,and there should be hundreds of these movies showing us what they did so it won't get forgotten by next generations.Cause nowadays kids doesn't read books,they watch movies.

So if you want a action extravaganza,rent Private Ryan,this is the truth about lingering pain,outrageous endurance and the will to fight when all seems lost.

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