The series *Boots* centers on a gay male protagonist navigating queer identity and discrimination in the 1990s military. Its narrative explores themes relevant to gay and queer men, such as internalized homophobia and societal expectations of masculinity. The show does not include or depict transsexual characters or themes within its storyline, focusing exclusively on gay male experiences.

The movie does not contain any action or adventure elements.

Based on the provided information, all main characters in 'Boots' are portrayed with the same gender as established in the source material, Greg Cope White's memoir 'The Pink Marine'. No character's on-screen gender differs from their canonical gender.

The film's casting aligns with or thoughtfully expands upon characters' backgrounds. For characters whose race was not specified in the source material, the casting of actors of different races does not constitute a race swap per the provided definition. No character established as one race in the source is portrayed as a different race.