Recent releases Spider-Man: Brand New Day and Supergirl have highlighted a stark divergence in how the Marvel Cinematic Universe (MCU) and the DC Universe (DCU) treat lethal force. While the MCU generally views cold-blooded execution as a moral failure, the DCU increasingly portrays such acts as righteous and triumphant.

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Kara's double-stab vs. Peter's police hand-off

The contrast in moral philosophy is most evident in the climaxes of Supergirl and Spider-Man: Brand New Day. In both films, a young woman is tempted to kill her tormentor—Ruthye facing Krem of the Yellow Hills in Supergirl, and Jean Grey facing William Metzger in Spider-Man. According to the report, both titular heroes successfully persuade the women to spare their enemies, but their subsequent actions reveal a deep ideological rift.

In the MCU entry, Peter Parker ensures William Metzger is handed over to the authorities, specifically the police represented by Jean DeWolff. Conversely, in the DCU film, Kara Zor-El prevents Ruthye from killing Krem only to stab Krem herself twice—once for poisoning a dog and once to avenge Ruthye. This suggests that while the MCU values the rule of law,the DCU allows its heroes to act as judge, jury, and executioner.

Hawkgirl's rejection of the Superman moral code

This willingness to employ lethal violence is not an isolated incident in James Gunn's DCU. The report notes that both Supergirl and Hawkgirl are depicted as righteous when killing defenseless villains. A primary example occurs in Superman, where Hawkgirl kills the corrupt politician Vasil Ghurkos. During this sequence, Hawkgirl explicitly boasts that she is not Superman and is not bound by his strict moral code.

This positioning suggests a DCU where moral approval is granted to heroes who take permanent, lethal action against evil. By framing these executions as triumphant, the DCU differentiates its protagonists from the more restrained archetypes found in the Marvel universe, moving away from the "no-kill" tropes that have dominated the genre for years.

The beheading of Thanos as a military operation

The MCU's track record across thirty-eight movies shows a consistent aversion to heroic executions. Most villain deaths in the MCU are the result of their own mistakes, such as Obadiah Stane or Mysterio, or occur in the heat of active battle, as seen with Hela and Ultron. The report highlights that the only major exception is the death of Thanos in Avengers: Endgame.

When Thor beheads Thanos, the film frames the act not as a vigilante execution, but as a valid military operation. The report argues that the MCU often shapes its superheroes to act like soldiers, seeking military script approval for films like Captain Marvel and Iron Man. In this context, the Avengers are depicted as agents of the state pursuing a war criminal,rather than individuals taking the law into their own hands.

The DCU's distrust of state authority

While the MCU leans into a militarized aesthetic and state alignment, the DCU appears to actively disapprove of formal authority. the report suggests that DCU heroes do good despite the state, rather than alongside it. This creates a universe where vigilante justice is not just a necessity, but a moral preference over the bureaucratic failures of government institutions.

However, several points remain unverified or unexplored in the current reporting. It is unclear if this lethal trend will be standardized across all future DCU projects or if it remains a trait of specific characters like Hawkgirl . Furthermore, the report mentions that in the original comics, Krem of the Yellow Hills is spared and seeks redemption—a detail that contradicts the DCU film's more violent resolution, raising questions about how much of this shift is a deliberate narrative choice by James Gunn to distance the films from the source material.