The Wrestler (1974)

Promoting the world of professional wrestling at the expense of the plot itself, Frank Bass (Ed Asner) takes a stand and defends what he thinks is right. Gamblers, mobsters, unscrupulous wrestlers, money-grubbing promoters, and fixers conspire to corrupt the industry, but Frank tries to make the game as honest and fair as it is his idealized vision. Frank's efforts climax as he promotes an over-the-hill champion in the final matches of his career.