The submarine HMS Sea Tiger, commanded by Lieutenant Taylor (John Mills) has just returned from an unsuccessful cruise and her crew are looking forward to seven days’ leave. They’re not going to get it. They get a single day and then they’re immediately sent off on a highly dangerous and super-secret mission - to intercept and sink the brand new German battleship Brandenburg.
Things pick up once they’re at sea and on the trail of the Brandenburg. The plan goes awry but rather than giving up Lieutenant Taylor comes up with an even more daring and dangerous plan - to break through into the Baltic, running the gauntlet of anti-submarine nets, minefields, the Luftwaffe and most of the German Navy. They do catch up to the German battleship, but whether they can succeed in sinking it or not is another matter.
The Royal Navy, seeing the obvious propaganda potential, lent its enthusiastic support and as a result this is a film that looks and feels surprisingly realistic with a lot of emphasis on how a submarine works and how submarine attacks are carried out.
The tone is of course hyper-heroic. Nobody cracks up under pressure because these are British sailors and Britannia rules the waves. The Germans, perhaps surprisingly, are not portrayed as monsters but as fairly ordinary guys doing their job even if they’re no match for our British heroes.
It looks pretty good on DVD. The image quality might not be be dazzling but it’s more than acceptable. The Region 2 DVD lacks extras but is fairly inexpensive.
We Dive at Dawn is perhaps just a bit too heroic and just a bit too sentimental but it’s well-crafted and has some genuinely exciting moments. Recommended, and for submarine movie fans it’s a must-see.