Kes adapted from the Barry Hines novel 'A Kestral for a Knave' is absolutely amazing. The review on imdb says it all for me, so am repeating that review here:
If you are not from the north of England you may have difficulty with the dialogue in this film but don't let it put you off this is a masterpiece. The story of a teenage boy with no friends and no hope set in the mining heartland of Yorkshire in the sixties is absolutely authentic. He finds salvation from the grim reality of his existence when he rears and trains a young kestrel, which is the only thing in his young life that has any meaning. David Bradley who plays Billy Casper in the leading role is superb. There are many scenes from the film that are absolute gems, but here are a few that warrant a special mention. Brian Glover playing the role of Billy's physical education teacher is out of this world, why he was never nominated as best supporting actor for an Oscar I will never know. Colin Welland (later to become an Oscar winner himself for screenplay of Chariots of Fire) was also brilliant as Billy's form teacher. The film reaches out to you on many levels. In me it stirred horror, anger, humour and tears. I am quite sure it will also do the same to anyone who views this timeless masterpiece.