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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.