Oh! What A Lovely War (UK, 1969) is a respectful, yet satirical look at 'The Great War' through the experiences of the Smith family. It is steadfastly anti-war, poking fun at the way in which the youth of the day are encouraged to join in and the futility of day to day conflicts. In the same breath it is also poignant and moving. Below are a series of clips from the film which show the creativity and the spectacle.
Maggie Smith's recruitment routine. https://www.youtube.com/watch?v=ynEWZF1bkLQ
The final breathtaking scene, all in the days before CGI and drones. https://www.youtube.com/watch?v=LV1a52yHafY
Australian advice to the reinforcements heading to Ypres. https://www.youtube.com/watch?v=bahJ1eVOELY
A link to the British Library discussing origins of the radio program and stage show.
...and Roger Ebert's review...https://www.rogerebert.com/reviews/oh-what-a-lovely-war-1969