This was part of a run of old war movies on TCM I caught recently. All of them, (the others were 'Captains of the Clouds' (1942) and 'Pilot #5', (1943)), had the same ending: the protagonist dies heroically on a suicide mission. The movies seemed fixated on the idea that heroes didn't just risk their lives: they sacrificed them. In 'Hell Below', perhaps the first of the great submarine dramas, there is an unnecessary heroic ending in which Robert Montgomery sacrifices his life to complete their mission while leaving the woman he loves to remain with her crippled husband.
The story is really about the sort of decisions a commander has to make. Montgomery rebels against his captain, (Walter Huston), who has left a raft with several crewmen, including Montgomery's pal, (and look-alike), Robert Young, (it's the only film they both appeared in and they should have been playing brothers), to die in a hail of German machine gun bullets while the sub dives to avoid being fired upon themselves. Montgomery never forgives Huston. On a later patrol, Montgomery violates orders to maintain silence to start a battle Huston wanted to avoid. Sterling Holloway gets trapped in a section of the ship where poison gas is leaking and Montgomery has to seal him off or expose the rest of the crew to the gas. It's the equivalent of what Huston had to do and he realizes it, even if he doesn't immediately admit it. That's the real dramatic climax of the film, not the comic book suicide mission at the end.
The film also features another trend of the times: the borscht belt comic relief provided by a noted comedian, in this case, Jimmy Durante. To the modern viewer this adds nothing to the film. In this case, there's also a glaring mistake in the editing. They apparently felt that the scene where Young and his men get machine gunned to death was a little strong so they sought to leaven it by following it with a clip from an earlier amusement park sequence in which Durante winds up boxing a kangaroo. This is the single most inappropriate and jarring segue in the history of the cinema. I suppose it's not quite right but I really wish someone would put it back where it belongs or delete it all together. One wonders why old Hollywood didn't trust the strength of the stories it was telling to entertain the audience.
The story is really about the sort of decisions a commander has to make. Montgomery rebels against his captain, (Walter Huston), who has left a raft with several crewmen, including Montgomery's pal, (and look-alike), Robert Young, (it's the only film they both appeared in and they should have been playing brothers), to die in a hail of German machine gun bullets while the sub dives to avoid being fired upon themselves. Montgomery never forgives Huston. On a later patrol, Montgomery violates orders to maintain silence to start a battle Huston wanted to avoid. Sterling Holloway gets trapped in a section of the ship where poison gas is leaking and Montgomery has to seal him off or expose the rest of the crew to the gas. It's the equivalent of what Huston had to do and he realizes it, even if he doesn't immediately admit it. That's the real dramatic climax of the film, not the comic book suicide mission at the end.
The film also features another trend of the times: the borscht belt comic relief provided by a noted comedian, in this case, Jimmy Durante. To the modern viewer this adds nothing to the film. In this case, there's also a glaring mistake in the editing. They apparently felt that the scene where Young and his men get machine gunned to death was a little strong so they sought to leaven it by following it with a clip from an earlier amusement park sequence in which Durante winds up boxing a kangaroo. This is the single most inappropriate and jarring segue in the history of the cinema. I suppose it's not quite right but I really wish someone would put it back where it belongs or delete it all together. One wonders why old Hollywood didn't trust the strength of the stories it was telling to entertain the audience.