Are employee relations and labour relations essentially the same? Are employee relations part of Dunlop’s industrial relations model

Are employee relations and labour relations essentially the same? Are employee relations part of Dunlop’s industrial relations model?This question is based on the film The Final Offer. Here is a link (this will open in new window) to the film : https://www.nfb.ca/film/final_offer. How much of a break from prior labour relations practice is shown in the film? The breakaway of the UAW’s Canadian region is considered a landmark event in this country’s labour history. Is that view justified by the film