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What event was The Great Escape adapted from?

In June 2000, in Dover, England, 58 illegal immigrants from China were found suffocated in a truck carrying tomatoes from the Netherlands. Only two people survived.

The Great Escape tells an immigrant story based on the real tragedy of immigrants in Dover, China, England. This movie is very real and shocking. Some people dive in for survival, some for love, and some for dreams.

Look at the resources in detail, there are too many words.