After watching The Fall of an Ice Sea, you should be able to feel that it is an out-and-out commercial film. From the first second of the opening of the film, a strong tension was created. Even in the deep sea, there is only the soundtrack of whether the torpedo hits or not, but through the fast-paced soundtrack and the dignified and high-pressure expression of the group performers, it successfully presents extremely aggressive emotions. The role description in The Fall of an Ice Sea is relatively thin. Except Captain Joe Glass, played by Jared Butler, all other supporting roles are reduced to functional walk-on roles, especially Gary Oldman, who just won an Oscar, who plays an impulsive, belligerent and self-respecting admiral. Although we can feel the interpretation of his devotion, it is difficult to understand the motivation and reasons for such hardcore persistence because of his poor characterization.