Without throwing it in my face or spoon feeding it to me like American movies tend to do this film got me thinking about proliferation of nuclear weapons, the deterrent role of nuclear subs (if they launch it’s doomsday), and various scenarios that could potentially occur.
Tidbit: After looking it up I learned only six countries have nuclear ballistic missile submarines: France, UK, US, Russia, China, India (as of year end 2020, with Brazil and Argentina in the works).