I admit to not having yet read the book on which this film is based and I'm willing to concede that the book may well be far better than the film; as alluded to in other reviews. That being said, I found this film touching, funny, controversial, unique, all those adjectives and more.
The casting of Danny Dyer as a homosexual sailor in the 1940s really shows his versatility as an actor and I believe this must have been a challenging and rewarding part. The film deals with issues that are taboo even by today's standards and although the narrative can be at times overly sentimental, these scenes are strangely refreshing and poignant.
Danny Dyer has some great lines and one hilarious scene involving a football. "Borstal Boy" is unprecedented in its approach to controversial issues and makes for a film well worth watching.