One of the few times Tom Courtenay would work in front of the camera during the 1970's, when most of his time was spent on stage. This was after working almost the entire 1960's in movies, where he was nominated for an Academy Award. Then in the 1980's, beginning with The Dresser (garnering another nomination), he'd continue film and television work for the rest of his career (as of 2019).
Only bootleg copies of this movie exist, although they do have decent quality.
The main theme (played throughout) is a variation of Amazing Grace.