Key Largo is a classic black and white thriller, set on one of the Florida Keys during the hurricane season. The cast is outstanding, with Humphrey Bogart, Lauren Bacall, Edward G. Robinson and Claire Trevor. I enjoyed it.
The story is straightforward. Bogey drops in at a hotel on Key Largo, to see the owner and his daughter, having fought alongside the owner's late son during the war. It's apparent that Bogey was a war hero, but he gives the impression that his colleague, Temple, was the heroic one. And this idea of heroiosm is a key element in the story. At some points, Bogey's character appears weak and irresolute. But the viewer is always optimistic that he will in the end assert himself - and that's a tribute to the iconic actor's powerful character.
A supposed fishing party, whose members are rather disagreeable, is staying at the hotel. It turns out that they are a gang of crooks, led by Johnny Rocco - played by Edward G. Robinson. The battle of wills between Robinson and Bogart is as compelling as the chemistry between Bacall and Bogart.
A word for Claire Trevor, who plays a drunken former nightclub singer. She puts in a very good performance, and plays a crucial part in the story-line. The story is sound, but it's the acting, and the powerful personalities of the actors, that make this movie memorable.