According to Radio Poland, the film tells the story of three friends who met at aviation school in Dęblin. Together, they survived the outbreak of World War II, and fled to the UK through Romania. Once in Great Britain, they became part of the legendary No. 303 Polish Fighter Squadron.

The 303 Hurricanes during the Battle of Britain. Graphics by Bolek Rykowski (Via www.polishsquadronsremembered.com)

Łukasz Palkowski, will take on directorial duties, while the script has been written by veteran film-maker Jerzy Skolimowski, Ewa Piaskowska and James McManus. Producer Jacek Samojłowicz is currently trying to get funding to get the film off the ground.

The creators are likely to be based on the story of the book “A Question of Honor: The Kosciuszko Squadron: Forgotten Heroes of World War II” written by Lynne Olson and Stanley Cloud. This book is the amazing told story of the scores of Polish fighter pilots of the renowned Kosciuszko Squadron, who driven by their passionate desire to liberate their homeland, helped save England during the Battle of Britain and came to be counted among the most heroic and successful fighter pilots of World War II. The book follows the principal characters from their training before the war, through their hair-raising escape from Poland to France and then, after the fall of France, to Britain.

303 squadron pilots. L-R: F/O Ferić, F/Lt Lt Kent, F/O Grzeszczak, P/O Radomski, P/O Zumbach, P/O Łokuciewski, F/O Henneberg, Sgt Rogowski, Sgt Szaposznikow in 1940 (Via en.wikipedia.org)

However, the image will not be probably refer to the suggested in the book "303 Squadron" written by Arkady Fiedler in 1942, which belonging to the canon of Polish books of war and describes the exploits of airmen from the famous squadron.

Battle of Britain has long been an object of interest of filmmakers. In 1969 was the hit film "Battle of Britain", that according to many Polish fans, not took sufficient account the unquestionable merits of Poles. These events were also became the subject of a Czech film "Dark Blue World" in 2001.

No. 303 Squadron is considered one of the best and most effective of 66 fighter squadrons participating in the Battle of Britain. During the Battle of Britain in 1940, No. 303 Squadron became the most successful Fighter Command unit in the Battle, shooting down 126 German machines in only 42 days.

126 German aircraft or "Adolfs" were claimed as shot down by No. 303 Squadron pilots during the Battle of Britain. This is the score of "Adolfs" chalked onto a Hurricane (Via en.wikipedia.org)

The Polish pilots played a crucial role during the Battle of Britain, where their daredevil skill in engaging German Messerschmitts in close and deadly combat while protecting the planes in their own groups soon made them legendary.

The squadron was famous among the Allies and the Nazi Luftwaffe for the agility and bravery of its pilots, and it ultimately shot down more enemy planes than any other formation. 

No. 303 "Kościuszko" Polish Fighter Squadron was one of 16 Polish squadrons in the Royal Air Force (RAF) during the Second World War. It was the highest scoring of these 16 Polish-manned RAF squadrons during the Battle of Britain.

Read about the No. 303 Polish Squadron Battle of Britain exploits here

Air Chief Marshal Sir Hugh Dowding, who led Fighter Command, would later write:

"Had it not been for the magnificent material contributed by the Polish squadrons and their unsurpassed gallantry, I hesitate to say that the outcome of the Battle would have been the same."

“I must confess that I had been a little doubtful of the effect which their experience in their own countries and in France might have had upon the Polish and Czech pilots, but my doubts were laid to rest, because all three squadrons swung into the fight with a dash and enthusiasm which is beyond praise. They were inspired by a burning hatred for the Germans which made them very deadly opponents. The first Polish squadron (No. 303), in No. 11 Group, during the course of the month shot down more Germans than any British unit in the same period. Other Poles and Czechs were used in small numbers in British squadrons, and fought very gallantly, but the language was a difficulty, and they were probably most efficiently employed in their own national units ...”