This is a superb evocation of RAF Bomber Command during the Second World War with exceptionally good acting by all the main characters. It provides a fascinating vignette of a Lancaster squadron at war, recreating the relationships of aircrew in the understated mannerisms and speech authentically redolent of the British services at that time. This must be one of Dirk Bogarde's finest roles and he is excellent as the slightly uptight but very brave squadron commander Tim Mason determined to complete his 90th 'op'. There is not much in the way of action as such, so traditional war film buffs may be disappointed, but for those interested in the wartime RAF this film is a must. The climax of the film uses genuine film footage of a raid on Germany and the haunting wireless chatter is real. The four genuine Lancaster bombers used in the film were flown by members of 214 Squadron under the supervision of the OC Sqn Ldr Peter Landon and the whole was shot on location at RAF Upwood. The hangar scenes are complete to the requisite and timeless whistling of the 'erks' and the ringing clang of spanners dropped on concrete. The screenplay and music were written by John Woodridge, a distinguished Mosquito pathfinder pilot. Marvellous stuff and highly recommended.