Which of these films is about an ex-prize fighter who struggles to stand up to his corrupt union bosses?

Elia Kazan's 1954 film "On the Waterfront", is about an ex-prize fighter who struggles to stand up to his corrupt union bosses. It is a film whose themes of brotherly loyalty and political betrayal also strongly spoke of items that deeply touched every or almost every American living in the 1950s.

In the film, dockworker Terry Malloy (Marlon Brando) had been an up-and-coming boxer until powerful local mob boss Johnny Friendly (Lee J. Cobb) persuaded him to throw a fight. When a longshoreman is murdered before he can testify about Friendly's control of the Hoboken waterfront, Terry teams up with the dead man's sister Edie (Eva Marie Saint) and a streetwise priest Father Barry (Karl Malden) to testify himself. This is done against the advice of Friendly's lawyer, who is Charley Malloy (Rod Steiger), Terry's older brother.

The idea of making this film was suggested by "Crime on the Waterfront" by Malcolm Johnson, a series of articles published in November–December 1948 in the 'New York Sun' which won the 1949 Pulitzer Prize for Local Reporting. The screenplay itself was by Budd Schulberg and directly based on his own original story. It was ultimately produced by Sam Spiegel with cinematography by Boris Kaufman, key editing by Gene Milford, and music by Leonard Bernstein. Horizon Pictures handled all production and Columbia Pictures Corp. conducted film distribution.

This film was both a critical and commercial success. It made a net profit of 8.5 million US dollars.