"Fat Man and Little Boy" vs "Gojira"

The films "Fat Man and Little Boy" and "Gojira" are two very different films, in genre, era and format. However, although one would initially likely see few similarities between them, they share a major theme: the dangers and moral questions surrounding the development and use of nuclear weapons. The two movies both hold a primary theme in this regard; the question of whether nuclear weapons are worth the potential cost of their use and development., and whether they should be allowed to be created at all. Each film addresses this theme as a core facet of the story, but the creators choose to do so in two ways that couldn't be much more different.
In the 1954 Japanese film "Gojira", a prehistoric sea-beast is awakened and mutated by the detonation of an atomic weapon. The proceeding havoc it wreaks upon Tokyo and greater Japan is quite clearly a lesson on man 'playing god' with nuclear weapons. The otherwise peaceful monster, having been irradiated and horrifically transformed by our own experiments, ends up rampaging through our cities. Although the filmmakers certainly didn't expect a monster to attack us if we used nuclear bombs, the example of Godzilla represented the greater threat of total self-destruction posed to humanity should we choose to use such apocalyptic weapons. After Godzilla had been created by the radiation, he couldn't be stopped by anything the most advanced military technology of the time could throw at him, as would be the case with nuclear warfare and the mutually assured destruction posed by it.
Godzilla also deals with atomic warfare and weapons of mass destruction in the form of its own, made up WMD; Dr. Serizawa's Oxygen Destroyer. Though the exact purpose and function of the weapon in the film was somewhat unclear, the basic point was made. Dr. Serizawa is terrified throughout the second half of someone finding out about the Oxygen Destroyer and using it for ill, and thus keeps it a total secret to the best of his ability. Serizawa does this because he fears, as the writers imply we all should, the awful possibilities posed by someone less morally scrupulous obtaining such powerfully destructive tools, and how many people they could hurt.

Meanwhile, the film "Fat Man and Little Boy" addresses the issue of nuclear weaponry through far less fantastical means. The movie tells the story of the scientists involved in the Manhattan Project, and focuses on its effects on them and their belief in the project. The development of nuclear weapons, despite being the goal of the Manhattan Project, was certainly not presented in a positive light by the film. The various scientists, including J. Robert Oppenheimer, slowly start to lose faith in the project after they find out that the enemy doesn't have the capability to make the weapon. They have to figure out whether what they're doing is morally justifiable due to how many people they could potentially save by having such a weapon in the 'right' hands, but they also can't be sure their government's hands are the right ones. Essentially, the justification from the government was that the United States needed to develop this weapon before anyone else could, so that nobody could try to attack us. However, the lethality of the weapon, even in its development, and the doors opened up for the future by its creation pose significant questions of right and wrong for the men working on the bomb.
While "Gojira" is definitely a more overtly anti-nuke film than "Fat Man and Little Boy", I believe that both hold a similar stance on the cons outweighing the pros when it comes to the awful destruction created by the use of atomic bombs. Although the atomic bomb could be argued to be a 'necessary' tool, I agree with the stances taken by the films; that once this destructive weapon is created and unleashed, it has terrible consequences that cannot be avoided.