Currently, there is no available information to indicate the presence of transsexual characters or themes in 'Bonjour Tristesse' (2025). The film's plot and themes, as described, focus on female relationships and coming-of-age, without any reference to transgender identity or related narratives.

The movie does not contain any action or adventure elements.

The 2025 film "Bonjour Tristesse" portrays all main characters with the same on-screen gender as established in the original 1954 novel. No character's gender deviates from their source material counterpart.

No character in the film was canonically, historically, or widely established as one race in the source material and then portrayed as a different race. While some characters' ethnicities or nationalities differ from the novel's implications, their broader racial categories remain consistent, or their race was not explicitly detailed in the source.