Dunkirk (2017 film) was filmed.
Dunkirk (2017 film) . The film is a co-production between the Netherlands , the United Kingdom , France , and the United States . Filming began on 23 May 2016 in Dunkirk , France , and was shot on IMAX 65 mm and 65 mm large format film stock by cinematographer Hoyte van Hoytema . IMAX is a 70 mm motion picture film format and a set of cinema projection standards developed in Canada in the late 1960s and early 1970s by Graeme Ferguson , Roman Kroitor , Robert Kerr , and William C. Shaw .