Although I haven't read the book that this film was based on, I went to see it at the cinema, and I don't remember crying as much at any film for quite a while. I guess the subject matter is likely to be emotive to most people, as we all have parents and will have to confront their mortality at some point in our lives, along with the complicated relationships that we have had with them. Nevertheless, the film is well realised, with strong central performances from it's two central characters (the wonderful Jim Broadbent and the under-rated Colin Firth).
Thematically this film is reminiscent of Tim Burton's wonderful "Big Fish" in many ways. The key difference (apart from the lack of all the fantasy scenes) is it's sheer Englishness, and although all that repressed emotion might leave some people a bit cold, as an English male myself, it moved me greatly. Let me put it this way: being the way I am, I already know that I will never be able to tell my father to his face that I love him (or discuss with him many things from the past that feel unresolved), and yet I also know that one day he will pass away and that I'll wish that I had! If you find that crazy, you probably aren't a repressed Englishman like me...if you can relate to what I've just said, however, then this film will speak volumes to you, and when Firth's character finally breaks down, you will probably find yourself doing the same and having a good old cathartic cry!
Having said all that, I expect that there is much in this film for everyone, as it is a sensitive subject handled well, and perhaps the best English film that I've seen this year. Recommended.