This is a must-see and one of the best documentaries - and films - of this year.

A film of deceptively outspoken contemporary relevance, this is cinema at its most alert, alarming and alive.

Story: It's very simple but honestly that is fine.

It's a movie as timely as it is provocative and amazingly, for much of its running time, it is weirdly funny.

This Republic programmer mainly set in a British aircraft factory has a largely British cast that pitch in gamely and a plot that anticipates the British 'Millions Like Us', released a few months later. The stress on doing your bit to "manufacture those grey hairs for that nasty man in Germany", as well as a couple of sequences sternly stressing the need to observe health and safety regulations to the letter makes it feel like a public information film, sweetened with frequent songs, including a duet between J.Pat O'Malley and Elsa Lanchester which marks one of Elsa's final film appearances in a youthful role before she became typecast as middle-aged (and then elderly) eccentrics.