The movie titled "Un roman national" is not explicitly mentioned as being produced in the year 2025 in the provided search results. However, based on the available information, here is a narrative of the story as it might be interpreted from the existing descriptions:

Imagine Paris on a sweltering June 24th, the heat record-breaking as the city pulsates with life. Our protagonist, Damien, is a 22-year-old militant of the far-right group "Barrière Nationale." This group is driven by the ideology of fighting against what they perceive as the "grand remplacement," a term often associated with the fear of being overtaken by other cultures or peoples.

The story begins with Damien's alignment with these extremist views, showing his involvement in the group and his belief in their cause. As the narrative unfolds, we see Damien's actions escalate, culminating in a tragic event where he shoots eleven people in a mosque. This moment is pivotal, reflecting the extreme violence and hatred that can arise from such ideologies.

Throughout the film, Damien's transformation from a young militant to someone who commits such a heinous act is a central theme. His character arc is marked by a deepening involvement in extremist ideologies, leading him to commit a horrific crime.

The film likely explores the psychological and social factors that lead individuals to such radicalization, as well as the consequences of such actions on the individuals involved and the community at large. However, without more detailed information on the plot progression, the exact narrative flow and character development remain speculative.

The film's setting and Damien's actions are intense and dramatic, capturing the viewer's attention with the stark contrast between the oppressive heat of the summer and the cold, calculated violence of the shooting. The narrative would likely delve into the aftermath of this event, exploring themes of guilt, reflection, or perhaps the lack thereof, and the societal response to such atrocities.

Given the lack of specific details on the movie's plot progression for a 2025 production, this narrative focuses on the core elements presented in the available descriptions.

The search results do not provide any information about a movie titled "Un roman national" produced in the year 2025. Instead, they mention a film of the same name but without specifying the production year as 2025. Therefore, I cannot provide an ending for a movie that does not appear to exist in the search results with that specific production year. However, I can describe the premise and elements of the film "Un roman national" based on available information:

At the age of 22, Damien is a militant for the far-right group "Barrière Nationale," which fights against the concept of "grand remplacement" . The film involves Damien committing a tragic act, shooting eleven people in a mosque on a sweltering June day in Paris . Given the lack of specific details about the ending, I can only speculate based on typical narrative structures for films dealing with such themes.

To expand on this without specific ending details, the narrative might explore Damien's radicalization, his actions, and the consequences thereof. Here's a hypothetical narrative:

• Introduction to Damien: The film might begin by introducing Damien, a young man deeply entrenched in far-right ideologies. His involvement with "Barrière Nationale" is portrayed as a significant part of his life.

• The Event: Damien's action of shooting eleven people in a mosque is the central tragedy. This act would be depicted with a focus on the emotional and psychological impact on Damien and those around him.

• Aftermath: Following the event, the film could delve into the legal and social repercussions Damien faces. This might include investigations, societal backlash, and internal conflict within Damien.

• Character Development: Throughout the narrative, Damien's character could evolve as he confronts the consequences of his actions. The film might explore themes of radicalization, extremism, and redemption.

• Conclusion: Without specific details, the ending could range from Damien's confrontation with the law, a reflection on his actions, or a broader commentary on the societal factors that led to such extremism.

This hypothetical narrative is speculative, as the actual ending of "Un roman national" is not provided in the search results.

"Un roman national," a 2025 film, appears to involve themes and content that may not be suitable for all audiences, especially children or sensitive individuals. The movie's premise involves a character associated with the far right, which suggests potential for political or ideological content that could be challenging for younger viewers. Additionally, the depiction of violence or tense situations might be present, given the character's actions. However, specific details about objectionable or upsetting scenes are not explicitly mentioned in the available information. It is advisable for parents or guardians to review the content or consult reviews before deciding whether it is appropriate for family viewing.