As a Dad's Army fan (and with a keen interest in the history of the REAL Home Guard of 1940 - 44) I realised this was never going to 'measure up' to the original TV series. In fact I thought it was going to be terrible (!) but went along to see it if only to tick the box. It was better than I expected and it was a pleasant surprise. Sadly I think that Tom Courtenay 'killed' LCpl Jones's character with a very wooden performance. However, there was good effort from the other actors. I thought that Toby Jones (Mainwaring) dominated the screen when he appeared and captured Mainwaring's flaws (and attributes) very well. I enjoyed Michael Gambon's Godfrey very much, and Bill Nighy's Sgt Wilson was an interesting re- interpretation that was nicely done. There were other good performances too (e.g Mrs Pike etc).
As well as a some chuckles, there were touching moments, and I think it captured the ethos of the time well (patriotism, paranoia reference the enemy, 'all pulling together' etc). In all I would call it a pleasant film to watch, and a homage of some sort to the original series and the historical Home Guard.
It was a nice touch to set the film in 1944 when the Home Guard was becoming ever more irrelevant. The original series (many have surmised) only covered the historical period of 1940 - 42. I've always regretted that and would have like to have seen the series set over the full 1940-44 period with perhaps a single episode covering their return to civilian life in December 1944 to round it off. The last year would have been quite comedic as Mainwaring might have struggled to enthuse the men as they became less relevant to to the war, and quite touching too.
I wouldn't listen to too many negative reviews, the film is worth seeing. I'd rather it had been made than not, even if it only points people towards the original series and reminds them that the Home Guard was real and that they lost 1,200 people to enemy action in WW2 (mainly air raids while on duty etc), and also that although they never faced an invasion (a real concern in 1940-41) they didn't know that at the time, but they volunteered anyway.
