The Championship Season (1982)

From Hoopedia

The Championship Season, from 1982 is an adaptation of an Arthur Miller play, in a story centered on a reunion of a 1957 Scranton, PA high school champion basketball team and their coach – and what they find out about themselves.

The film stars Bruce Dern, Stacy Keach, Robert Mitchum, Martin Sheen, Paul Sorvino, and Arthur Franz.