Gosh, what an odd view the other reviews paint of this film's setting! The Women's Institute was a significant voluntary organisation during WW2. This film is one of many paying a tribute to that organisation - a recognition of their contribution to the war effort. Like other films of this type, e.g. Fires Were Started, they'd be a bit dull if they didn't include some human interest - and that is where most of the plot is driven - in particular with respect to the Ellis family.
The casting is interesting. The year before the fantastic A Canterbury Tale - a Powell and Pressburger gem - came out. The stars of this brilliant film were - Eric Portman and Sheila Sim - Captain and Miss Ellis in Great Day. The chemistry between the two in ACT was, I'm sure, what got them into Great Day. Even Miss Sim's (later Lady Attenborough, by the way) clothes were carried over - it seems!
