In the 1950 era some Hong kong stuff was labelled "Made in the British empire" or "British made" or "Made in British crown colony" when they could get away with it.
Besides the Americans, I am not sure how many countries insist on country of origin being marked on products. I know here the dealer can just have the goods marked with "Imported BY..." (but of course if they give a location it must be factual)
To get back to the Gist of the thread, I am wondering how many retailers are ordering ENOUGH film to make private label products viable? The minimums are likely still in the Thousands of rolls, with a take or pay clause if the retailer does not order the full quantity of the contract.