On the Waterfront is a 1954 American crime drama film, directed by Elia Kazan and written by Budd Schulberg. It stars Marlon Brando, and features Karl Malden, Lee J. Cobb, Rod Steiger, Pat Henning and Eva Marie Saint in her film debut. The musical score was composed by Leonard Bernstein. The black-and- white film was inspired 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, but the screenplay by Budd Schulberg is directly based on his own original story. The film focuses on union violence and corruption among longshoremen, while detailing widespread corruption, extortion, and racketeering on the waterfronts of Hoboken, New Jersey.

References:
https://en.wikipedia.org/wiki/On_the_Waterfront