J. Arthur Rank ship at dock and grain

The transcript discusses the emergence of Jay Arthur Rank, a prominent figure during the war. Rank, a wealthy industrialist with little movie background, was one of the richest men in England. His wealth primarily came from a flour milling business established by his father. Rank expanded his business interests by investing in various sectors.

Describe the background of Jay Arthur Rank in the movie industry.

What significant event occurred just before the establishment of Rank's business?