I'd guessed about 1944 from what people were wearing in the picture, especially the hats - a fashion item not rationed via the "points" system, if I'm right, and much ingenuity was exercised in devising them.
The wedding dress might be a bit earlier, re-cycled (there was a war on,....) but the flowers look right for that date.
I do hope that you find it, and let us all know.
Might there be online records for the wedding, if you know the names of even one of the people wed, you may find it. Look for weddings in likely areas, a surprising number are available, and they will give the name of the church - parish records are usually more helpful than register office records at this level. Good luck.