Since no one so far seems to have mentioned it, there was in fact a Hollywood-style film made (albeit in the UK, not Hollywood), with a mixture of British and American stars, based on the Haukelid/Norsk Hydro story, called "The Heroes of Telemark". Despite being an war/action movie, it actually somehow managed to understate the historical reality.
Since no one so far seems to have mentioned it, there was in fact a Hollywood-style film made (albeit in the UK, not Hollywood), with a mixture of British and American stars, based on the Haukelid/Norsk Hydro story, called "The Heroes of Telemark". Despite being an war/action movie, it actually somehow managed to understate the historical reality.
http://www.imdb.com/title/tt0059263/