A Day Called 'X'
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A Day Called 'X' was a dramatized CBS documentary showing a civil defence exercise in Portland, Oregon in which the entire city is evacuated in response to an air raid. It was filmed in September 1957[1] and aired December 8 of that year.[2][3] It was presented by Glenn Ford.
Its local rebroadcast in 2004[4] and appearance in the on-line Prelinger Archives attracted interest among local history buffs due to its extensive outside shots of the city, and the use of non-actor participants (local officials and broadcasters).[5][6]
On September 27, 1955, Portland actually conducted an exercise evacuation of downtown called "Operation Greenlight,"[7][8] and the film is often misattributed to that year.