Premise: The Choirboys is a 1977 American comedy-drama film directed by Robert Aldrich, written by Christopher Knopf and Joseph Wambaugh based on Wambaugh's novel of the same title. It features an ensemble cast including Charles Durning, Louis Gossett, Jr., Randy Quaid, and James Woods. The film was released to theaters by Universal Pictures on December 23, 1977.
Hypothesis: Christopher Knopf and Joseph Wambaugh wrote a few other movies together