"The First Omen" presents itself as a technically well-produced film, with a decent budget evident in its sets and successfully recreated atmosphere of the 1970s, providing a visually appealing experience. The soundtrack and sound effects also stand out, using characteristic sounds of the era to build the temporal setting of the work. The performances of the actors, especially Nell Tiger Free and Nicole Sorace, are convincing. Despite the plot about the Antichrist and diabolical pregnancy not bringing anything new to the horror genre, the film manages to entertain the viewer solidly and competently.

However, I found it difficult to fully engage with the narrative, unlike what happened with the film "Immaculate." And although "The First Omen" is competent, it doesn't stand out enough to distinguish itself from other works in the horror genre.

SPOILERS The explanation that the church is creating the Antichrist and the revelation that the protagonist is the daughter of the devil are aspects that do not fit cohesively into the plot, resulting in a confusing explanation that hampers the narrative development. Additionally, the revelation of the protagonist's origin ends up being predictable due to the clues left throughout the film, reducing the emotional impact of the revelation. For example: the lack of contextualization about the protagonist's past and the evident clues of her demonic origins contribute to a less impactful revelation.