It is the mid-1930s and the storm clouds of WWII were forming in Germany. This films charts the work of Robert Watson Watt - the pioneer of Radar - and his hand-picked team of eccentric yet brilliant meteorologists as they struggle to turn the concept of Radar into a workable reality. Hamstrung by a tiny budget, seemingly insurmountable technical problems and even a spy in the camp, Watson Watt also has to deal with marital problems as he chases his dream. By 1939, Watson Watt and his team have developed the world's first Radar system along the south east coast of England. A system that, in 1940, proved pivotal in winning the Battle of Britain.

  1. Gillies MacKinnon


Top Billed Cast

  1. Eddie Izzard

    Eddie Izzard

    Robert Watson Watt

  2. Karl Davies

    Karl Davies

    Skip Wilkins

  3. Laura Fraser

    Laura Fraser

    Margaret Watson Watt

  4. Lesley Harcourt

    Lesley Harcourt

    Helen - Secretary

  5. Alex Jennings

    Alex Jennings

    Henry Tizard

Full Cast & Crew

Castles in the Sky
Castles in the Sky


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Status Released

Release Information

  • June 23, 2014


    All ages admitted, there is nothing unsuitable for children.

Original Language English

Runtime 1h 30m

Budget -

Revenue -

Homepage -



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