If you like The Chorus, you might also like it!

The Chorus (surprisingly but deservedly) is probably the only film in my short list below that hasn't become exasperatingly obscure.

Four other choir school or boychoir stories:

Almost Angels (1962): A more light-hearted approach to a plot remarkably similar to Boychoir. It would certainly appear that the producers of Boychoir were familiar with it, as they should be. Even the voice-change scene in a gymnasium is there.

A Swarm in May (1983) (based on novel by William Mayne)

The Choir (1995 TV Mini-Series) (based on novel by Joanna Trollope)

The Chorus (2004) (Les Choristes)


Two other films dealing with the tensions when a long-absent father finally decides to take responsibility:

Marvin & Tige (1983)

Blame It on the Night (1984)

Any others?