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Their Finest Hour and a Half Filming Locations

Their Finest Hour and a Half was filmed in the United Kingdom

Pinewood Studios

Pinewood Studios

Catrin serves as the on-set writer when the production moves to the studio.

Source: IMDb

Porthgain Harbour

Dover Harbour

Catrin and Tom talk while the crew films establishing shots and later they get into an argument under the full moon.

Source: IMDb