Definition: In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Input: passage: It has often been stated that ``633 Squadron'' was based on a true story but in fact this is not the case. Rather the story was ``inspired by the exploits of the British and Commonwealth Mosquito Air Crews'' (as is stated just after the main titles of the film). There never was a 633 Squadron nor was there ever an attack on a factory in a Norwegian fiord using ``earthquake bombs''. In fact the bombs which appear in the 1964 film version look like standard RAF 4,000 lb ``cookie'' bombs.
 question: is the film 633 squadron based on a true story?

No